The Extech RH250W is a tiny Hygro-Thermometer with Bluetooth® connectivity, allowing construction and maintenance professionals to see and share relative humidity and temperature data from a mobile device using the free ExView app. Users can receive deeper insights into the health of their equipment and buildings by capturing data, displaying trends, setting visual and auditory alarms, and sending reports.
| Relative Humidity | 0 to 100% RH |
|---|---|
| Relative Humidity Basic Accuracy | ±5% RH |
| Relative Humidity Max Resolution | 0.1% RH |
| Response Time | 1 sec |
| Sampling Rate | 1s |
| Temperature (Air) | 14 to 140°F (-10 to 60°C) |
| Temperature (Air) Basic Accuracy | ±2.0°F (±1.0°C) |
| Temperature (Air) Max Resolution | 0.2°F (0.1°C) |
| Wireless Connectivity | Bluetooth® (via ExView iOS/Android mobile app) |
| Wireless Transmission Range | up to 90 m line of sight |
| Certifications | CE, FCC, UKCA |
| Dimensions | 5.9 × 2.1 × 1.1 in (150 × 53 × 28 mm) |
| Operating Conditions | 32 to 104°F (0 to 40°C),≤80% RH |
| Power | 3 × AAA (1.5V) batteries |
| Warranty | 2 years |
| Weight | 2.8 oz (80.5 g) |
