La Crosse WS272 - Air Quality Monitor Manual

FEATURES

• 12/24h time display
• Temperature display in ºC / ºF
• Indoor and outdoor temperature display with MIN/MAX records
• Indoor humidity display in RH%
• Air quality alert
• Air quality indicator
• Low battery indicator

THE OUTDOOR TEMPERATURE TRANSMITTER

• Remote transmission of outdoor temperature to the air quality monitor by 868 MHz signal
• Rain proof casing
• Wall mounting case

TO INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE TRANSMITTER

The temperature transmitter uses 2 x AA, IEC, LR6, 1.5V batteries. To install and replace the batteries, please follow the steps below:

1. Remove the cover.
2. Insert the batteries, observing the correct polarity (see marking).
3. Replace the battery cover on the unit.

TO INSTALL AND REPLACE BATTERIES IN THE AIR QUALITY MONITOR

The air quality monitor uses 2 x C, IEC LR14, 1.5V battery. To install and replace the battery, please follow the steps below:

1. Remove the cover at the back of the air quality monitor.
2. Insert batteries observing the correct polarity (see marking).
3. Replace compartment cover.

SETTING UP

1. First, insert the batteries in the transmitter (see "Install and replace batteries in the temperature transmitter" above).
2. Within 2 minutes of powering up the transmitter, insert the batteries in the Temperature Station (see "Install and replace batteries in the air quality monitor" above).
3. The indoor temperature/humidity and the time as 0:00 will be displayed. If these information are not displayed on the LCD after 60 seconds, remove the batteries and wait for at least 60 seconds before reinserting them. Once the indoor data is displayed user may proceed to the next step.
4. The air quality monitor will start receiving data signal from the transmitter. The outdoor temperature data should then be displayed on the air quality monitor. If this does not happen after 2 minutes, the batteries will need to be removed from both units and reset from step 1

Note:

• The Equivalent CO₂ ppm will only be displayed after 30 minutes.
• The air quality sensor will take up to 5 days after inserting batteries to condition itself for the room it is placed. If the unit is placed into another room, there might be a reconditioning time of several days as well.

BATTERY CHARGE

It is recommended to replace the batteries in the unit regularly to ensure optimum accuracy of the unit (Battery life See Specifications below).

Please participate in the preservation of the environment. Return used batteries to an authorised depot.

KEY FUNCTIONS

The Air Quality Monitor has 4 easy-to-use keys:

SET key:

• Press and hold to enter the manual setting modes: 12/24 hour time display, manual time, and ºC / ºF temperature display settings

+ key:

• Press to change, set, toggle all manual settings

AL key:

• Stop the LED air quality alert
• Exit the manual setting mode

MIN/MAX key:

• Press to toggle between MAX/MIN and current indoor temperature/humidity and outdoor data
• Exit the manual setting mode

LCD SCREEN

* When the signal is successfully received by the temperature station, the outdoor transmission icon will be switched on. (If not successful, the icon will not be shown on LCD). The user can then easily see whether the last reception was successful (icon on) or not (icon off). On the other hand, the short blinking of the icon shows that a reception is currently taking place.

MANUAL SETTINGS

The following manual settings can be done in the setting mode:

• 12/24 hour time setting
• Time setting
• ºC / ºF temperature display setting

Press and hold the SET button for about 3 second to enter the setting mode:

12/24 HOUR TIME DISPLAY SETTING

1. "12hr" or "24hr" flashes in the LCD. (default 24hr)
2. Press the + key to select the "12hr" or "24hr" display mode.
3. Confirm with the SET key and enter the Manual time setting.

MANUAL TIME SETTING

To set the clock:

1. The hour digits start flashing in the time display section.
2. Use the + key to adjust the hours and then press SET key to go to the minute setting.
3. The minute will be flashing. Press the + key to just the minutes.
4. Confirm with the SET key and enter the °C/°F temperature unit setting.

°C/°F TEMPERATURE UNIT SETTING

The default temperature reading is set to °C (degree Celsius). To select °F (degree Fahrenheit):

1. The "°C" will be flashing, use the + key to toggle between "°C" and "°F".
2. Confirm with the SET key and exit the manual settings.

AIR QUALITY ALERT

The LED will flash when:

• Equivalent CO₂ ppm > 1500ppm:
  LED alert blinks at a slower speed (1.5s).
• Equivalent CO₂ ppm > 2000ppm:
  LED alert blinks at faster speed (0.5s).

Note about the air quality alert:

• The air quality alert will sound for a maximum duration of 30 minutes.
• To stop the alert, press any key.

AIR QUALITY INDICATOR

The air quality indicator is located on the bottom of the LCD. It changes from GREEN (GOOD) to RED (BAD) by measuring the Equivalent CO₂ ppm.

Note:
A 9-level bar graph is used to indicate "GREEN" to "RED" air quality level in the surrounding environment:

DISPLAY OF MIN/MAX TEMPERATURE AND HUMIDITY RECORDS

1. In normal display mode, press the MIN/MAX key once. The MIN indoor/outdoor temperature and indoor humidity will be shown in the LCD.
2. Then press the MIN/MAX key one more time, the MAX indoor/outdoor temperature and indoor humidity will be shown in the LCD.
3. Press one more time the MIN/MAX key to go back to the normal display.

RESETTING THE INDOOR MAXIMUM/ MINIMUM RECORDS

Note: The indoor/outdoor minimum and maximum and humidity records will be reset at the same time

1. Press and hold the MIN/MAX key for about 3 seconds, this will reset the indoor/outdoor MIN/MAX temperatures and humidity to the current temperature and humidity.

TEMPERATURE TRANSMITTER

The outdoor temperature is measured and transmitted every 4 seconds.

The range of the temperature transmitter may be affected by the temperature. At cold temperatures the transmitting distance may be decreased. Please bear this in mind when placing the transmitter.

868 Mhz RECEPTION

If the outdoor data are not being received within three minutes after setting up (or outdoor display always show "- -. -" in the outdoor sections of the temperature station during normal operation), please check the following points:

1. The distance of the air quality monitor or transmitter should be at least 2 meters away from any interfering sources such as computer monitors or TV sets.
2. Avoid placing the transmitters onto or in the immediate proximity of metal window frames.
3. Using other electrical products such as headphones or speakers operating on the 868MHz-signal frequency may prevent correct signal transmission or reception. Neighbors using electrical devices operating on the 868MHz-signal frequency can also cause interference.

Note:
When the 868MHz signal is received correctly, do not re-open the battery covers of either the transmitter or air quality monitor, as the batteries may spring free from the contacts and force a false reset. Should this happen accidentally then reset all units (see Setting up above) otherwise transmission problems may occur.

The transmission range is about 100 m from the transmitter to the air quality monitor (in open space). However, this depends on the surrounding environment and interference levels. If no reception is possible despite the observation of these factors, all system units have to be reset (see Setting up).

POSITIONING THE OUTDOOR TEMPERATURE TRANSMITTER

Before wall mounting, please check that the outdoor temperature can be received from the desired locations.
Mount the transmitter at a sheltered place. Avoid direct rain and sunshine.

The transmitter is supplied with a holder that may be attached to a wall with the two screws supplied. The sensor can also be position on a flat surface by securing the stand to the bottom to the transmitter.

To wall mount:

1. Secure the bracket onto a desired wall using the screws and plastic anchors.
2. Clip the remote temperature sensor onto the bracket.

Note:
Before permanently fixing the transmitter wall base, place all units in the desired locations to check that the outdoor temperature reading is receivable. In event that the signal is not received, relocate the transmitters or move them slightly as this may help the signal reception.

CARE AND MAINTENANCE

• Extreme temperatures, vibration and shock should be avoided as these may cause damage to the unit and give inaccurate forecasts and readings.
• Precautions shall be taken when handling the batteries. Injuries, burns, or property damage may be resulted if the batteries are in contact with conducting materials, heat, corrosive materials or explosives. The batteries shall be taken out from the unit before the product is to be stored for a long period of time.
• Immediately remove all low powered batteries to avoid leakage and damage. Replace only with new batteries of the recommended type.
• When cleaning the display and casings, use a soft damp cloth only. Do not use solvents or scouring agents as they may mark the LCD and casings.
• Do not submerge the unit in water.
• Special care shall be taken when handling a damaged LCD display. The liquid crystals can be harmful to user's health.
• Do not make any repair attempts to the unit. Return them to their original point of purchase for repair by a qualified engineer. Opening and tampering with the unit may invalidate their guarantee.
• Never touch the exposed electronic circuit of the device as there is a danger of electric shock should it become exposed.
• Do not expose the units to extreme and sudden temperature changes, this may lead to rapid changes in forecasts and readings and thereby reduce their accuracy.

SPECIFICATIONS

Recommended temperature range: +5ºC to +40ºC / +41ºF to 104ºF

Temperature measuring range:

Relative humidity measuring range:

Equivalent CO₂ ppm measuring range:
450ppm to 6950ppm with 50ppm resolution (display OFL > 6950ppm)

Measuring intervals:

Power consumption:

Dimensions (L x W x H):

LIABILITY DISCLAIMER

• The electrical and electronic wastes contain hazardous substances. Disposal of electronic waste in wild country and/or in unauthorized grounds strongly damages the environment.
• Please contact your local or/and regional authorities to retrieve the addresses of legal dumping grounds with selective collection.
• All electronic instruments must from now on be recycled. User shall take an active part in the reuse, recycling and recovery of the electrical and electronic waste.
• The unrestricted disposal of electronic waste may do harm on public health and the quality of environment.
• As stated on the gift box and labeled on the product, reading the "User manual" is highly recommended for the benefit of the user. This product must however not be thrown in general rubbish collection points.
• The manufacturer and supplier cannot accept any responsibility for any incorrect readings and any consequences that occur should an inaccurate reading take place.
• This product is designed for use in the home only as indication of the temperature and other weather data.
• This product is not to be used for medical purposes or for public information.
  The specifications of this product may change without prior notice.
• This product is not a toy. Keep out of the reach of children. No part of this manual may be reproduced without written authorization of the manufacturer.