The Ridgid HM-100 Micro Humidity & Temperature Meter is a professional & easy to use device for accurately measuring air humidity & temperature. Both measured values (%RH & °C or °F) are instantly & simultaneously displayed on the dual backlit LCD. The HM-100 also automatically calculates the Dew Point & Wet Bulb temperature, while its Capacitance Sensor easily withstands the effects of condensation & high temperatures, making it perfectly suitable for any HVAC environment. Supplied with a soft carrying case, & 9V battery. Specifications: Power Source: 9V battery (supplied). Measurements: Humidity, temperature, dew point, wet-bulb. Humidity Range: 0% to 100% RH. Humidity Accuracy: ±2% RH. Temp. Range: -30°C
- 100°C. Temp. Accuracy: ±0.5°C. Response Time: 30 seconds. Data Hold: Yes. Auto Power-Off: Yes, after 15 minutes (can be disabled).