Extech Instruments RH250W User manual

Quick Start

RH250W Hygro-

Thermometer

Bluetooth® Connectivity with the

ExView® Mobile App

Quick Start (en)

PREPARATION

1. Included items: RH250W, Quick Start, and batteries.

2. Download the User Manual from the Extech website.

3. Download the ExView mobile app from the App Store (iOS®) or

Google Play (Android™).

4. Install batteries in the rear compartment.

5. Long press the power button to switch the meter on (short

press to switch off).

GENERAL SAFETY

• Check for damage to the device before use. Return the unit if

damage is evident.

• Do not attempt to open the meter housing or access the sensor.

• CE and FCC Compliant.

TAKING MEASUREMENTS

1. Long press the power button to switch the meter on.

2. Hold the meter, place it on table or desk, or mount on tripod in

the test area.

3. Relative humidity and temperature readings are shown on the

top and bottom of the LCD, respectively.

4. If the temperature measurement is out of range, OL will appear.

BLUETOOTH OPERATION

Long press the Bluetooth button to switch Bluetooth on or off.

Download the ExView mobile app onto your smart device from the

App Store or Google Play.

Instructions for use are available on the Extech website (ExView

product page). Switch APO off when using Bluetooth by pressing

the power and Hbuttons until the APO symbol switches off.

#NAS100079; r. AA/78960/78963; en-US 1

METER DESCRIPTION

1. Temperature & Relative Humidity Sensor

2. Backlit LCD

3. Function buttons

4. Tripod mount

5. Battery compartment

FUNCTION BUTTONS

Long press to switch on. Short press to switch off.

Long press to switch Bluetooth on/off.

Short press to cycle through MAX/MIN readings. MAX/MIN

memories are reset when meter power is cycled.

Short press to freeze/unfreeze readings.

Long press to switch the LCD backlight on/off.

Short press to toggle temperature units (℃/℉).

#NAS100079; r. AA/78960/78963; en-US 2

DISPLAY SYMBOLS

1. Bluetooth active

2. Auto Power Off (APO) symbol

3. Relative Humidity reading

4. Maximum reading

5. Minimum reading

6. Data Hold

7. Low battery symbol

8. Temperature reading

BASIC SPECIFICATIONS

Display type 4 digit backlit LCD

Low battery indication Replace batteries when symbol appears

Temp. measurement range 14 to 140℉(-10 to 60℃)

Temp. resolution 0.2℉(0.1℃)

Temp. accuracy ± 2.0℉(1.0℃)

RH measurement range 0 to 100% RH

RH accuracy ± 5% RH

Operating conditions 32 to 104℉(0 to 40℃); < 90% RH

Storage conditions -4 to 140℉(-20 to 60℃); < 75% RH

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. View the full warranty at this link:

#NAS100079; r. AA/78960/78963; en-US 3

http://www.extech.com/support/warranties

CUSTOMER SUPPORT

Customer Support Telephone List:

https://support.flir.com/contact

Service e-mail:[email protected]

Technical Support:https://support.flir.com

#NAS100079; r. AA/78960/78963; en-US 4

#NAS100079; r. AA/78960/78963; en-US 5

last page

Publ. No.: NAS100079

Release: AA

Commit: 78960

Head: 78963

Language: en-US

Modified: 2021-08-26

Formatted: 2021-08-26

Website

http://www.flir.com

Customer support

http://support.flir.com

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. Please

refer to [email protected] with any questions.

Quick Start

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