

Extech RH200W-T Wireless Hygro-Thermometer Transmitter
The Extech RH200W-T is a wireless transmitter designed to monitor temperature and relative humidity remotely. It operates over a 433 MHz frequency with a transmission range of up to 30 meters (98 feet), making it ideal for applications such as multi-room environmental monitoring in settings like restaurants, manufacturing facilities, offices, homes, greenhouses, and storage/archive buildings.
Description
The RH200W-T is a compact, battery-powered transmitter that measures both temperature and relative humidity. It features a 433 MHz wireless transmission capability, allowing it to send data to a compatible base station up to 30 meters (98 feet) away. This makes it suitable for monitoring environmental conditions across multiple rooms or areas without the need for extensive wiring. The device is powered by 2 AA 1.5V batteries, ensuring easy installation and maintenance. Its rugged design and wireless functionality make it a versatile choice for various environmental monitoring applications.
Features
- Wireless Transmission: Operates at 433 MHz with a transmission range of up to 30 meters (98 feet).
- Temperature Range: Measures temperatures from -40°F to 140°F (-40°C to 60°C).
- Humidity Range: Monitors relative humidity levels from 1% to 99% RH.
- Accuracy:
- Temperature: ±1.8°F (±1°C).
- Humidity: ±5% RH.
- Resolution:
- Temperature: 0.1°F/°C.
- Humidity: 1% RH.
- Power Supply: Operates on 2 AA 1.5V batteries.
- Dimensions: Measures 4.5 × 2.4 × 1.6 inches (113 × 61 × 39.5 mm).
- Weight: Approximately 4.8 oz (136 g).
- Certifications: CE and FCC approved.
- Compatibility: Designed to work with the Extech RH200W base station.
Included
- Extech RH200W-T Wireless Hygro-Thermometer Transmitter
- 2 x AA batteries
- 1 Year Warranty from Extech





