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Summary of Contents for Extech Instruments RH250W
- Page 1 User Manual RH250W Hygro-Thermometer Bluetooth® Connectivity with the ExView® Mobile App...
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Page 2: Table Of Contents
Table of contents Introduction................1 Safety ................2 FCC Compliance ..............3 Product Description ............4 Meter Description ............4 Function Buttons ............4 Display Symbols............5 Operation ................6 Powering the Meter ............. 6 Auto Power Off (APO)..........6 Taking Measurements ..........6 Changing Measurement Units ........7 Data Hold Function ............. -
Page 3: Introduction
Introduction Thank you for selecting the Extech RH250W Hygro-Thermometer. This meter measures air temperature and relative humidity (RH) with its built-in sensor. The RH and temperature readings are shown on the top and bottom rows of the LCD, respectively. The meter includes Bluetooth, MAX/MIN memory, selectable units of meas- ure, auto power off, data hold, backlit LCD, and tripod mount. -
Page 4: Safety
Safety Please read all safety information before using this device CAUTION • Check for damage to the device’s housing, sensor, display, and battery compartment before use. If obvious damage or abnormalities are noticed, please discontinue use and return the device for service. •... -
Page 5: Fcc Compliance
FCC Compliance This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. -
Page 6: Product Description
Product Description 4.1 Meter Description 1. Temperature & Relative Humidity Sensor 2. Backlit LCD (detailed below) 3. Function buttons (detailed below) 4. Tripod mount 5. Battery compartment 4.2 Function Buttons Power / Bluetooth button Long press to switch the device on. Short press to switch off. With the meter powered, long press to switch Bluetooth on/off. -
Page 7: Display Symbols
Product Description Unit of Measure button Short press to toggle the displayed temperature units (℃ / ℉). APO ON/OFF With the meter on, long press the power and H buttons to switch APO on/off. The APO symbol is displayed when APO is enabled. APO is reset each time the meter power is cycled. -
Page 8: Operation
Operation 5.1 Powering the Meter The meter operates on three (3) 1.5 V (AAA) batteries, installed in the rear compartment. Long press the power button to switch the meter on. Short press the power button to switch the meter off. If the meter does not switch on, check the bat- teries for proper orientation. -
Page 9: Changing Measurement Units
Operation CAUTION Do not touch or otherwise obstruct the sensor module. Do not allow liquids to come in contact with the sensor. Do not allow dust or other particles to enter the sensor module. 5.4 Changing Measurement Units Short press the ℃ / ℉ button to toggle the displayed temperature units of measure. - Page 10 Operation Download the ExView mobile app from the App Store for iOS devices or from Google Play for Android devices. Instructions for mobile app use are available from the ExView product page on the Extech website (link below). http://www.extech.com Switch APO off when using Bluetooth by pressing and holding the power and H buttons for 2 seconds (the APO symbol will switch off).
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Page 11: Maintenance
Maintenance CAUTION Warning: Do not open the housing or sensor module. Service should only be performed by factory personnel, there are no user-serviceable components in this device. 6.1 General Cleaning Wipe the housing with a damp cloth as necessary to clean. Do not use abra- sives or solvents to clean this device. -
Page 12: Specifications
Specifications 7.1 General Specifications Display 4 digit (9999) backlit multifunction LCD Over range indication OL is displayed when temperature measurements are out of range Low battery indication Battery symbol appears when batteries are low Reading update rate One reading per second Meter power Three (3) 1.5 V (AAA) batteries Dimensions... -
Page 13: Connectivity Specifications
Specifications 7.4 Connectivity Specifications Connectivity Bluetooth (with ExView app) ExView app compatibility iOS 13.0 and Android 9.0 or higher Transmission distance Up to 295.3 ft. (90 m) with no line-of-sight obstruction #NAS100074; r. AA/78956/78963; en-US... -
Page 14: Two-Year Warranty
Two-year Warranty FLIR Systems, Inc. warrants this Extech brand instrument to be free of defects in parts and workmanship for two years from date of shipment (a six- month limited warranty applies to sensors and cables). To view the full war- ranty text please visit: http://www.extech.com/support/warranties. - Page 16 User Manual last page Website http://www.flir.com Customer support http://support.flir.com Copyright © 2021, FLIR Systems, Inc. All rights reserved worldwide. Disclaimer Specifications subject to change without further notice. Models and accessories subject to regional market considerations. License procedures may apply. Products described herein may be subject to US Export Regulations.
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