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Fine offset HP3500 Operation Manual

Tft color display wifi weather station
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TFT COLOR DISPLAY WIFI WEATHER STATION
Operation Manual
Model: HP3500
Thank you for purchasing this TFT Color Display Weather Station! This
device provides accurate weather readings and is Wi-Fi capable to
stream data from the weather station to Internet based weather
services.
This manual will guide you, step-by-step, through setting up your
weather station and console, and understanding the operation of your
weather station. Use this manual to become familiar with your
professional weather station and save it for future reference.
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  • Page 1 TFT COLOR DISPLAY WIFI WEATHER STATION Operation Manual Model: HP3500 Thank you for purchasing this TFT Color Display Weather Station! This device provides accurate weather readings and is Wi-Fi capable to stream data from the weather station to Internet based weather services.

  • Page 2: Table Of Contents

    1 Table of Contents 1 TABLE OF CONTENTS ................2 2 TABLE OF FIGURES ................. 5 3 TABLE OF TABLES ................... 7 4 UNPACKING....................8 5 OVERVIEW ....................10 5.1 D ................10 ISPLAY CONSOLE 5.2 I : .................. 11 NDOOR SENSOR 5.3 F ....................
  • Page 3 7.2.1 Backlight ..................27 7.2.2 Data Units..................28 7.2.3 Coefficients.................. 28 7.2.4 Barometer..................29 7.2.5 Rainfall ..................29 7.2.6 Graph Time ................. 30 7.2.7 Time Format ................30 7.2.8 Date Format ................30 7.2.9 Date and Time ................30 7.2.10 Sensor Type ................30 7.3 C ................
  • Page 4 9.4 R (WOW) ... 57 EGISTERING WITH EATHER BSERVATIONS EBSITE 9.4.1 Sign up with WOW ..............57 9.4.2 Confirm email with WOW ............59 9.4.3 Login with WOW ................. 59 9.4.4 Create/Set up a new WOW site ..........59 9.4.5 Entering WOW information in the mobile application ....61 –...

  • Page 5: Table Of Figures

    2 Table of Figures Figure 1 : Display console screen ............ 10 Figure 2 : Display console side views ..........10 Figure 3 : Indoor sensor 3 display variations ........11 Figure 4 : Sensor assembly components ......... 14 Figure 5 : U-Bolt installation ............. 14 Figure 6 : Wind vane installation diagram ....
  • Page 6 Figure 27 : WOW Signup menu ............57 Figure 28 : WOW Registration account options ....... 58 Figure 29 : WOW New account form ..........58 Figure 30 : WOW Successful registration ........59 Figure 31 : WOW New Site menu ............ 59 Figure 32 : WOW Site Created ............

  • Page 7: Table Of Tables

    3 Table of Tables Table 1: Package content Table 2: Sensor assembly detailed items Table 3: RF Signal Strength reduction Table 4: Display console detailed items Table 5: Console buttons Table 6: Beaufort wind force scale Table 7: Supported weather services Table 8: Glossary of terms Table 9: Outdoor sensor specification Table 10: Indoor sensor specification...

  • Page 8: Unpacking

    4 Unpacking Open your weather station box and inspect that the contents are intact (nothing broken) and complete (nothing missing). Inside you should find the following: QTY Item Description Display Console Outdoor Sensor Body with built-in: Thermo-hygrometer / Rain Gauge / Wind Speed Sensor/ Wind Direction Sensor, Light and UV sensor, Solar panel Wind speed cups (to be attached to outdoor sensor body) Wind vane (to be attached to outdoor sensor body)
  • Page 9 Note: Batteries for the outdoor sensor package are not included. You will need 2 AA size batteries, alkaline or Lithium batteries (Lithium recommended for colder climates). Note: The console operates using an AC adapter. The included adapter is a switching-type adapter and can generate a small amount of electrical interference with the RF reception in the console, when placed too close to the console.

  • Page 10: Overview

    5 Overview 5.1 Display console Figure 1: Display console screen USB Port DC Connector microSD Card Port Figure 2: Display console side views...

  • Page 11: Indoor Sensor

    5.2 Indoor sensor: Figure 3: Indoor sensor 3 display variations The indoor sensor will display indoor temperature, humidity and barometric pressure alternately. The sensor will use US or metric units, as appropriate for the locale where the unit was sold. 5.3 Features ...
  • Page 12  Selectable display units for each sensor: C or F (temperature); mph, km/h, m/s, knots or Beaufort (wind speed); inHg, hPa or mmHg (pressure); in or mm (rainfall); lux, fc or w/m (solar lighting)  Barometric history graph (12, 24, 48, or 72 hr.) ...

  • Page 13: Set Up Guide

    6 Set up Guide To complete assembly you will need a Philips screwdriver (size PH0) and a wrench (size M5; included in package). Note: We suggest you assemble all components of the weather station, including console in one location so you can easily test functionality.

  • Page 14: Install U-Bolts And Metal Plate

    Figure 4: Sensor assembly components 1 Wind vane 7 Solar panel 2 Wind speed cups 8 U-Bolts 3 Light sensor and UV sensor 9 Battery compartment door 4 Thermo- and hygro-meter senor 10 Reset button 5 Rain collector 11 LED (red) to indicate data transmission Bubble level Table 2: Sensor assembly detailed items...

  • Page 15: Install Wind Vane

    The plate and U-Bolts are not yet needed at this stage but doing this now may help avoid damaging wind vane and wind speed cups later on. Handling of the sensor package with wind vane and speed cups installed to install these bolts is more difficult and more likely to lead to damage.
  • Page 16 (size PH0). Make sure the cup assembly can rotate freely. There should be no noticeable friction when it is turning. Figure 7: Wind speed cup installation diagram 6.1.4 Install the Rain Gauge Funnel Rotate clockwise to attach the funnel to the sensor array. Figure 8: Rain Gauge Funnel installation diagram 6.1.5 Install Batteries in sensor package Open the battery compartment and insert 2 AA batteries in the battery...

  • Page 17: Mount Assembled Outdoor Sensor Package

    Figure 9: Battery installation diagram Note: If LED does not light up or is on permanently, make sure the battery is inserted the correct way and inserted fully, starting over if necessary. Do not install the batteries backwards as it may permanently damage the outdoor sensor.

  • Page 18: Reset Button And Transmitter Led

    Figure 10: Sensor package mounting diagram Note: If you tested the full assembly indoors and then came back here for instructions and mounted to sensor package outdoor you may want to make some further adjustments on the console. The transportation from indoor to outdoor and handling of the sensor is likely to have “tripped”...

  • Page 19: Indoor Sensor Set Up

    Figure 11: Reset button and Transmitter LED location 6.2 Indoor Sensor Set Up Note: To avoid permanent damage, please take note of the battery polarity before inserting the batteries. Looking at Figure 6 from left to right the left-most (or bottom) battery is to be installed with its + terminal pointing down, and the other battery with its + terminal pointing up.

  • Page 20: Sensor Placement

    6.2.1 Sensor Placement The best mounting location for the indoor sensor is in a location that never receives direct sunlight, not even through windows. Also, do not install in a location where a nearby radiant heat source (radiator, heaters, etc.) will affect it. Direct sunlight and radiant heat sources will result in inaccurate temperature readings.

  • Page 21: Best Practices For Wireless Communication

    monitors), and transmission barriers, such as walls. In general, wireless signals will not penetrate solid metal and earth (down a hill, for example). 6.3 Best Practices for Wireless Communication Wireless (RF) communication is susceptible to interference, distance, walls and metal barriers. We recommend the following best practices for trouble free wireless communication between both sensor packages and the console: ...

  • Page 22: Console Display

    The following table shows different transmission media and expected signal strength reductions. Each “wall” or obstruction decreases the transmission range by the factor shown below. Medium RF Signal Strength Reduction Glass (untreated) 5-15% Plastics 10-15% Wood 10-40% Brick 10-40% Concrete 40-80% Metal 90-100%...

  • Page 23: Initial Display Console Set Up

    1 Time and Date 9 Light 2 Historical Data Graph 10 Rainfall 3 Barometric Pressure 11 Wind speed/Gust speed 4 Indoor Temperature 12 Wind direction 5. Indoor Humidity 13 Wi-Fi Signal icon 6 Outdoor Temperature 14 WU Icon 7 Outdoor Humidity 15 High Alarm icon 8 UV index 16 Low Alarm icon...

  • Page 24: Key Functions

    6.4.2 Key functions Figure 9: Buttons around the display There is a set of four keys on the bottom of the display console. The following tables briefly explains the function of these keys. Button Function(s) GRAPH Cycle between display of historical graphs of various weather quantities (press repeatedly);...

  • Page 25: Operating The Console

    7 Operating the console The display console has seven modes. Normal, or display, mode shows you various weather quantities and will be your “normal” use mode. Use the MENU key to enter the various setup modes. Press the MENU key repeatedly to reach the various setup pages and, eventually, return back to normal mode.

  • Page 26: Rain Data

    Wind chill and heat index are perceptual values (that’s why they are described as “Feels Like”) that indicate the air temperature as experienced by humans, as opposed to the measured ambient air temperature. The passing flow of lower temperature air makes it feel “colder”...

  • Page 27: Setting Mode

     “Feels Like” temperature and dew point temperature  Indoor and outdoor humidity  Absolute (ABS) and Relative (REL) barometric pressure  Wind speed and gust speed  UV-index  Solar Radiation (Light)  Rain rate 7.2 Setting Mode Settings mode can be activated from “normal mode” by pressing the MENU once.

  • Page 28: Data Units

     Turn on backlight: Use next button to move between controlling hours or minutes and use “+” and “-” buttons to changes the values.  Turn off backlight: Use next button to move between controlling hours or minutes and use “+” and “-” buttons to changes the values.

  • Page 29: Barometer

    Generally, you should not have to change these gain values, but if you know for sure that your sensor readings are systematically incorrect by a proportional amount (not an offset), you can edit the following:  Rain: Register rain in greater amounts (> 1) or lesser amounts (<...

  • Page 30: Graph Time

    7.2.6 Graph Time The “Graph Time” setting controls how far back the historical data graph looks to present data. Press the “+” button repeatedly to select from “12,”, “24,”, “48,” or “72” hours. 7.2.7 Time Format The “Time Format” setting controls how time is displayed. Press the “+” button repeatedly to select between “AM h:mm:ss”, “h:mm:ss AM”, and “h:mm:ss”.

  • Page 31: Calibration Mode

    cannot be changed. Future firmware versions may accommodate additional/optional sensors and make this editable. 7.3 Calibration Mode Calibration mode can be activated from “normal mode” by pressing the MENU twice. Doing so will show a screen titled “Calibration” that offers 11 individual buttons for changing calibration values for specific sensors.

  • Page 32: Calibration Of Barometric Pressure Settings

     Weekly Rain total  Monthly Rain total  Yearly Rain total  Absolute (ABS) barometric pressure (measured at the console)  Relative (REL) barometric pressure (calculated from ABS to correspond to sea level) The rain values are not corrections, but rather reflect totals accumulated so far.
  • Page 33 For this procedure we will get the most precise results if our display for pressure is in hPa units. Even if you do not want to use those units eventually, set the console to use them for now. Determine the altitude, or elevation above sea level, of your station’s console.
  • Page 34 elevation and a standard pressure of 1013.25 hPa/mb and press calculate. We find an “absolute barometer value” that should be -1.5626061222588443 hPa lower than at sea level. The inverse (because relative pressure is higher than absolute pressure) of this number will be our “REL PRESS OFFSET” value. Use the settings procedure to increase REL by +1.6 (nearest rounded value we can input).

  • Page 35: Alarm Mode

    correct after all. It appears to be 3.8 too high, so we’ll now enter a correction of -3.8 in the settings for “ABS Barometer” until it reads a value 3.8 hPa lower than before. This kind of correction is entirely normal as during manufacturing small shifts in the pressure sensor readings can be introduced.

  • Page 36: Temperature Max/Min Mode

    you can enter alarm mode by pressing the MENU key three times to get to the “Indoor” alarms page, or four times to get to the “Outdoor” alarms page. When an alarm condition is met, the alarm will sound a loud beep, and the alarm icon ( ) will flash on the top of the display.

  • Page 37: Other Max/Min Mode

     Indoor temperature  Indoor humidity  Outdoor temperature  Outdoor humidity  Dew point temperature  “Feels Like” temperature The values are for observation only and cannot be changed. 7.6 Other Max/Min Mode The “Other Max/Min” page can be entered from the “Temperature Max/Min”...

  • Page 38: Factory Mode

    7.8 Factory Mode The “Factory” mode page can be entered from the normal mode by repeatedly pressing the MENU key. Use the GRAPH or TEMP button to move to the next, or previous, option (indicated by a right arrow above the button). The selected option will be highlighted in yellow.
  • Page 39 name and password. This should rarely be necessary but might be useful after you have moved the console or Wi-Fi access point and want to check the console is able to re-connect.  Wi-Fi Reset: Reset Wi-Fi to factory setting. This causes the already configured network name and password to be erased.

  • Page 40: Other Console Functions

    8 Other Console Functions 8.1 Historical data storage The console can record historical weather data when an appropriate microSD card is inserted in the slot available for this purpose. This is an optional feature so there will be no problem if you do not install a card.

  • Page 41: Beaufort Wind Force Scale

    after “0x” are hexadecimal representations of the sensor type registered. 8.3 Beaufort Wind Force Scale If you have selected the use of Beaufort wind speed units, you can use the table below for reference. The Beaufort scale is based on qualitative wind conditions and how they would affect a ship’s (frigate) sails (so yes, it is an “old”...

  • Page 42: Publishing To Internet Weather Services

    9 Publishing to Internet Weather Services Your console is capable of sending your sensor data to select internet-based weather services. The supported services are shown in the table below: Service Website Description Weather https://www.wunderground. Weather Underground Underground is a free weather hosting service that allows you to send and view your weather...

  • Page 43: Connecting The Weather Station Console To Wi-Fi

    9.1 Connecting the Weather Station Console to Wi-Fi To send weather data to these services you must connect your console to the internet via Wi-Fi. The console can only operate using Wi-Fi when the external power adapter is connected and plugged in! Note: If you are testing the setup with the outdoor sensor package nearby and indoor, you may want to consider connecting to Wi-Fi, but not yet configuring any of the weather services.

  • Page 44: Connect Mobile Device To Easyweather Wi-Fi

    9.1.3 Connect mobile device to EasyWeather Wi-Fi Using your phone’s Wi-Fi setup capabilities (WLAN setup for Android, Wi-Fi for iOS devices), connect your phone to the EasyWeather network now advertised by the console. For Android users: Answer “NO” to the “No Internet access” message! For iOS users: Look for the network named “EasyWeather-WIFI”...

  • Page 45: Register A Personal Weather Station (Pws) With Wunderground.com

    “Unsecured Network” under the name of the “EasyWeather-WIFI” network. This is normal and can be ignored. 9.1.4 Register a Personal Weather Station (PWS) with wunderground.com If you are planning to use wunderground.com you must have an account and register a (new) personal weather station. You may do so on the wunderground.com web site, or you can do this from within the mobile app.
  • Page 46 you can register on wunderground.com and create your PWS by pressing on the settings icon and activating the “Register with wunderground” option. Fill out the form and take note of the station ID and password. Figure 11: Mobile application – wunderground.com registration (Android) Figure 12: Mobile application - wunderground.com registration (iOS)
  • Page 47 Next, tap on the settings icon and select “Configure Device”. You will be shown some instructions to read. Press “Next” when ready. You will then be asked for the wunderground.com station ID and password. If you are not planning to use wunderground.com, you may leave this form blank, otherwise enter them and click “Save.”...
  • Page 48 After entering the wunderground.com information (or leaving it blank), tap “Next” and you will be presented with the Wi-Fi mode page. Here you will enter the name of the Wi-Fi network (SSID) you want the console to connect to for Internet access, as well as its password (if applicable).
  • Page 49 After entering your Wi-Fi network details, the console will discontinue the EasyWeather Wi-Fi network and connect to your “normal” network. It will also start sending weather data to wunderground.com if you configured it. Your mobile device may still be configured for the EasyWeather network, or it may have already switched to another available network.

  • Page 50: Registering With And Using Wunderground Com

    Figure 18: Mobile application – Your devices (iOS) Tapping on your console’s entry in the device list will bring you to the page where you can change WU registration information, or update firmware. 9.2 Registering with and using wunderground.com If you have not already done setup for wunderground.com during the Wi-Fi setup, you can do so later.
  • Page 51 Select More | Register Your PWS (3) Click Send Validation Email (4). Respond to the validation email from Wunderground.com (it may take a few minutes). Select More | Register Your PWS (5) again. This time you will be asked details about your weather station. Go ahead and fill out the form After completing the weather station, you will see something like this:...

  • Page 52: Viewing Data On Wunderground.com

    In the example above, you see station 424 in the state of Arizona (AZ) in the United States (K). Take note of the station ID and key/password and enter it in the mobile application: 9.2.1 Viewing data on wunderground.com The most basic way to observe your weather station’s data is by using the wunderground.com web site.
  • Page 53 Figure 19: Sample wunderground.com PWS page There are also some very useful mobile apps. The URLs provided here go to the Web version of the application pages. You can also find them directly from the iOS or Google Play stores: ...
  • Page 54  WU Storm: iPad and iPhone application for viewing radar images, animated wind, cloud coverage and detailed forecast, and PWS station data https://itunes.apple.com/us/app/wu-storm/id955957721  Weather Underground: Forecast: iOS and Android application for forecasts https://itunes.apple.com/us/app/weather-underground-forecast/id 486154808 https://play.google.com/store/apps/details?id=com.wunderground. android.weather&hl=en...
  • Page 55  PWS Weather Station Monitor: View weather conditions in your neighborhood, or even right in your own backyard. Connects to wunderground.com https://itunes.apple.com/us/app/pws-weather-station-monitor/id71 3705929...

  • Page 56: Registering With And Using Weathercloud

    9.3 Registering with and using Weathercloud To register with Weathercloud follow these steps: Visit weathercloud.net and enter a Username, Email and Password to sign up. Respond to the validation email from Weathercloud (it may take a few minutes). You will then be prompted to add a device/ Select “Create device” and enter your station’s information: After registering your station, take note of the “Weathercloud ID”...

  • Page 57: Registering With Weather Observations Website (Wow)

    Figure 20: Mobile application – Weathercloud configuration 9.4 Registering with Weather Observations Website (WOW) To have your weather station upload data to the Met Office’s WOW site you will need to complete the following steps: Sign Up with WOW Confirm your email with WOW Login to WOW Create/Set up a new WOW site 9.4.1 Sign up with WOW...
  • Page 58 You will be presented with the screen below where you will choose to either create a new account or use an already existing account. Click the desired option. Figure 22: WOW Registration account options If you chose “New Account” you will be presented with a form to fill out: Figure 23: WOW New account form The actual form is longer, but all questions should be self-explanatory.

  • Page 59: Confirm Email With Wow

    Figure 24: WOW Successful registration 9.4.2 Confirm email with WOW Now wait for the email to arrive and click the link in that email to confirm your email address. 9.4.3 Login with WOW Follow instructions on the screen and login to the site. 9.4.4 Create/Set up a new WOW site Once you are logged in you will need to create a new WOW site.
  • Page 60 You will be presented with a form where you detail your station’s location and a bunch of other settings related to how you wish the site to operate. After you complete the setup, you should see: Figure 26: WOW Site Created Make sure you are (still) logged in to the WOW site.

  • Page 61: Entering Wow Information In The Mobile Application

    Figure 28: WOW Authentication Key You will need both “Site ID” and “Authentication Key” to setup the upload configuration for WOW in the mobile application. 9.4.5 Entering WOW information in the mobile application In your mobile application, navigate to the “Your Devices” page and tap on the device you want to configure WOW for.

  • Page 62: Mobile Application - Check Weather Data And Graph

    If you did everything correctly, data should be starting to upload to your WOW site. You may want to go back to the “Edit” page and (re)configure some of the options so that it shows everything to your liking. 9.5 Mobile application – Check weather data and graph In the mobile application choose the station from the WU station list and you will be presented with a page listing current conditions for that station.

  • Page 63: Mobile Application - Set Units

    Figure 31: Mobile application – Remove monitoring WU ID 9.7 Mobile application – Set Units You may want to change the units in which sensor values are reported. To do so, click on the “Configure Units” menu after tapping on the settings icon.

  • Page 64: Pc Software Operation

    10 PC Software Operation Software to monitor your weather station or set values is available for your computer or laptop. The following operating systems are supported: Windows version XP, Vista, 7, 8 or 10. You may download the software from: http://www.ecowitt.com/manual/software/ 10.1 Installation and configuration After downloading, install the software by decompressing the archive named “EasyWeather2 Setup.”...

  • Page 65: Setup Functions

    10.2 Setup Functions Setup functions are reached via the “Setup” menu (Figure 34). Each of the different setup categories will be discussed in the next sections. Figure 34: Setup menu 10.2.1 Basic Settings Basic settings (Figure 35) can be used to change display units, time zone and daylight savings time handling, and data logger interval.

  • Page 66: Alarm Settings

    Changing settings on this screen will cause the corresponding change to be made on the console as well. Thus, this screen controls both the display format on the PC screen as well as the console. The data logger interval determines how often current sensor values are written to the SD card inserted in the console (if you indeed have inserted a card there).

  • Page 67: Calibration Settings

    Any changes you make here will be reflected inside the console. Change the value(s) in the respective input fields and use the checkbox(es) to enable or disable specific alarms. 10.2.3 Calibration Settings Calibration Settings allow you to change calibration settings for the sensors.

  • Page 68: Rain Totals

    displayed absolute pressure (ABS) to determine the displayed relative pressure (REL). This offset typically corresponds to the elevation above sea level for your weather station’s indoor sensor. 10.2.4 Rain Totals The currently accumulated rain totals for different periods can be seen, and changed, on this screen (Figure 38).

  • Page 69: Max/Min

    Figure 39: Record menu 10.3.1 Max/Min The Max/Min menu will bring up a screen that displays maximum and minimum recorded values for the various sensors. These extremes are across the entire usage lifetime of the weather station, or since the last reset, whichever is shorter.

  • Page 70: Sdcard File

    The screen also offers a “Clear” button. When pressed, all maximum and minimum values will be “forgotten” and new maxima and minima will only be collected from sensor data collected from this point forward. 10.3.2 SDCard File Figure 41: SDCard File screen If you have an SD card installed, you may also access the data on the SD card directly.
  • Page 71 10.3.2.1 Graph You can look at the data on the SDCard file(s) in the form of a graph (Figure 42). Figure 42: Graph screen After displaying data from a particular file, you can press the “Graph” button to see the data in graphical format. The Graph screen will come up, but a graph will not yet be drawn.

  • Page 72: Maintenance

    11 Maintenance The following steps should be taken for proper maintenance of your station Clean the rain gauge once every 3 months. Rotate the funnel counter-clockwise and lift to expose the rain gauge mechanism, and clean with a damp cloth. Remove any dirt, debris and insects. If bug infestation is an issue, spray the array lightly with insecticide.
  • Page 73 Clean the solar radiation sensor and solar panel every 3 months with a non-abrasive slightly damp cloth. Replace batteries every 1-2 years. If left in too long, the batteries may leak due to environmental challenges. In harsh environments, inspect the batteries every 3 months (while cleaning the solar panel).

  • Page 74: Troubleshooting Guide

    12 Troubleshooting Guide Look through the following table and locate an issue or problem you are experiencing in the left column and read possible solutions in the right column. Problem Solution Outdoor Check that the outdoor transmission LED on the sensor not bottom is flashing approximately every 16 seconds.
  • Page 75 Problem Solution (--), the remote sensor is defective. If the sensor properly syncs up, proceed to the next step “Intermittent problems with outdoor sensor reception on console.” Intermittent There may be a temporary loss of communication problems with due to signal quality issues caused by electrical outdoor interference or other location related factors sensor...
  • Page 76 Problem Solution for one or both sensors (see section 7.3.1) to adjust to a known good reference temperature. Indoor and procedure here that same Outdoor outdoor/indoor temperature. The sensors should Humidity do agree within 10 % (the sensor accuracy is ± 5 %) not agree If these values still disagree, use calibration offsets during indoor...
  • Page 77 Problem Solution d.com note the digit 0 can only occur in the last part of the station ID (which is a station number in a city). Example, KAZPHOEN11, not KAZPH0EN11 Confirm that your password (also called: key) is correct. It is the password wunderground.com generated for your station ID.

  • Page 78: Glossary Of Common Terms

    13 Glossary of Common Terms TERM DESCRIPTION ABSOLUTE AIR PRESSURE Absolute air pressure is the air ABSOLUTE BAROMETRIC pressure registered on a barometer PRESSURE without regard to altitude. BAROMETER barometer device that measures the pressure of the air pushing on it—this measurement is called the barometric pressure.

  • Page 79: Relative Air Pressure

    TERM DESCRIPTION equivalent. HYGROMETER An instrument that measure relative humidity of the air. This is expressed as a percentage between 0% and 100%. INCHES OF MERCURY This common unit (inHg) measurement for air pressure in the United States. It refers to the length of a standard column of mercury (a liquid metal) that can be pushed up by the ambient...

  • Page 80: Wind Chill

    TERM DESCRIPTION RELATIVE BAROMETRIC pressure compensated for the altitude PRESSURE of the barometer. The result is what the air pressure would be at sea level. Thin-Film-Transistor, a type of LCD screen. ULTRA VIOLET INDEX The ultraviolet index or UV-Index (UVI) international standard measurement...

  • Page 81: Specifications

    14 Specifications Note: Out of range values will be displayed using “---”: Outdoor sensor Specification Transmission distance in 100 m (330 ft.) open field RF Frequency 433 / 868 / 915 MHz depending on location United States: 915 MHz -40° C – 60° C (-40° F - 140° F) Temperature range Temperature accuracy ±...
  • Page 82 Indoor sensor Specification -10° C – 60° C (14° F - 140° F) Temperature range Temperature resolution 0.1° C, or 0.1° F Humidity range 10% ~ 99% Humidity resolution 300 – 1,100 hPa (8.85 – 32.5 inHg) Barometric pressure range ±...

  • Page 83: Fcc Statement

    15 FCC Statement Statement according to FCC part 15.19: This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: This device may not cause harmful interference. This device must accept any interference received, including interference that may cause undesired operation.
  • Page 84 This device complies with FCC radiation exposure limits set forth for an uncontrolled environment and it also complies with Part 15 of the FCC RF Rules. This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.

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