Simultaneously monitor relative humidity and temperature from a mobile device
The RH250W is a compact hygro-thermometer with Bluetooth® connectivity, which allows building and maintenance professionals to view and share relative humidity and temperature data directly from a mobile device using the free ExView app. With the capability to capture data, display trends, set visual and audio alarms, and send reports, users can gain deeper insights on equipment and building health.
Features
- Measure relative humidity and air temperature simultaneously
- Transmit, view, and share data directly from a mobile device via Bluetooth connection to the ExView app
- Record Max/Min readings
- Freeze display with 'Data Hold'
- Save battery life with Auto Power Off feature
- Mount on tripod with standard 1/4''-20 mounting screw
- View data on both the bright, backlit RH250W LCD display and from the app on iOS® or Android™ mobile devices (offers both day mode and dark mode)
- Connect up to eight compatible Extech Connected 250W Series meters to the app simultaneously
- Set up data recording and program high/low audible alarms through the app
- Export data in .CSV file format or send PDF reports—including photos of the measurement location—from the app
- Comes complete with 3 AAA (1.5 V) batteries
| Specifications | Range | Max Resolution | Basic Accuracy |
|---|---|---|---|
| Relative Humidity | 0 to 100% RH | 0.1% RH | ±5% RH |
| Air Temperature | -10 to 60°C (14 to 140°F) | 0.1°C (0.2°F) | ±1.0°C (±2.0°F) |
| Response Time | 1 sec | ||
| Connectivity | Bluetooth (Free ExView App) | ||
| ExView App Compatibility | iOS 13.0 and higher & Android 9.0 and higher | ||
| Transmission Distance | <10 m up to 90 m line of sight | ||
| Power | 3 x AAA (1.5 V) battery (included) | ||
| Operating Conditions | 0 to 40°C (32 to 104°F), ≤80% RH | ||
| Dimensions | 5.9 × 2.1 × 1.1 in (150 × 53 × 28 mm) | ||
| Weight | 2.8 oz (80.5 g) | ||
US 18835 
GB 13460 
CA 11582 
AU 10247 
IE 4135 
NZ 3436 
IN 1241 
MY 788 
