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RH200W: Multi-Channel Wireless Hygro-Thermometer

Connect up to 8 Wireless Transmitters to Remotely Measure Indoor Temperature/Humidity

View Datasheet > RH200W


Extech’s Multi-Channel Hygro-Thermometer, with easy-to-read 1.3″ (33mm) digits, displays indoor Temperature and Humidity levels. You can connect up to 8 wireless transmitters to remotely measure Temperature/Humidity levels up to 98ft (30m) away. The LCD is designed with an auto-night light and it displays icons that indicate indoor comfort levels and trending arrows that show the increase, decrease or constant readings. It also records Min/Max for the duration of each measurement session. Ideal for multi-room environmental monitoring for restaurants, manufacturing facilities, offices, homes, greenhouses, and storage/archive buildings.

Additional information

Temperature - Indoor Base Station

23 to 122°F (-5 to 50°C)

Temperature - Remote Transmitter (RH200W-T)

-40°F to 140°F (-40°C to 60°C)

Relative Humidity

1 to 99%RH

Wireless Sensor Signal


Number of Remote Transmitters

Base Station can connect up to 8 Transmitters (RH200W-T)


Base: 5.1 x 4.4 x 1.1" (130 x 112 x 27.5mm); Transmitter: 4.5 x 2.4 x 1.6" (113 x 61 x 39.5mm)


Base: 10.4oz (295g); Transmitter: 4.8oz (136g)

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