Description Overview GAOTek wind speed hygrometer can measure the air speed, air velocity, air volume, temp., humidity, dew point and wet bulb temperature, which is the best choice as the wind speed monitoring device in HVAC (heating, ventilation, refrigerating and air conditioning) or industrial related application. The temperature and humidity sensors which could measure the low speed or velocity wind with high accuracy. It has extended van probe, which can insert to the high duct easily. The compact mini impeller is ideally designed for duct airflow. Duct temperature has no influence on airflow wind measurement. It is a microprocessor-based design. A must device for HVAC engineers uses. No need to whirl the meter or refer to the chart, easy to get wet bulb and dew point quickly. Features Low battery indicator Backlight for dark area operation PC interface for data download Handheld size, easy to carry Fast response and accurate reading Hold function freezes current readings Technical Specifications Wind Speed Accuracy ± (3% of reading 0.2 m or s) Air Temperature Range -4 °F to 140 °F (-20 ℃ to 60 ℃) Air Temperature Resolution 0.1℃ or 0.1℉ Air Temperature Accuracy ±33.08 °F (0.6 ℃) Air Rh% Range 0.1% RH to 99.9%RH Air Rh% Resolution 0.1% RH Air Rh% Accuracy ±3% RH at 77 °F (25 ℃) 10% RH to 90% RH, others ±5% RH Temperature Response Time 60 seconds Air Rh% Response Rime 60 seconds LCD update Every second Wet Bulb Temp. Display -4 °F to 139.82 °F (-20 ℃ to 59.9 ℃) Dew Point Temp. Display -4 °F to 139.82 °F (-20 ℃ to 59.9 ℃) Air Volume Resolution 0.1 (0 to 9999.9) or 1 (10000 to 99999) Operating Temperature 32 °F to 122 °F (0 ℃ to 50 ℃) Operating RH% Humidity <80% Storage Temperature 14 °F to 122 °F (-10 ℃ to 50 ℃) Storage RH% Humidity <90 % Meter Size 6.65 in x 3.08 in x 1.35 in (169 mm x 78.3 mm x 34.4 mm) Weight 7.05 oz (200 g)
