The 2 in 1 digital Humidity & Temperature Meter & Wet Bulb Temperature Dewpoint Temperature has been designed to combine the functions of humidity meter, temperature meter, wet bulb temperature and dewpoint temperature.</br>It is an ideal Humidity & Temperature Meter instrument with scores of practical applications for laboratory, industrial, engineer and professional.</br>The humidity & temperature meter is for use a humidity/ semiconductor sensor.</br>Dual Display Temperature & Humidity; Resolution 0.01%RH, 0.01 °C/0.01 °F.</br>Max Hold and Data Hold Function; Auto Power Off, Disable Sleep Mode.</br></br>Product Description</br></br><b> Specifications: </b><p/> ● Display: Large 4-1/2 dual digital LCD display <br> ● Sensor Type: A single chip relative humidity and temperature muti sensor module comprising a calibrated digital output. <br> ● Response Time: %RH: 10S (90% at +25 °C still air) <br>● Accuracy Note: Accuracy is specified for the following ambient temperature range: 64°F to 82°F (18°C to 28°C) <br> ● Sampling Rate: 2.5 samples per second <br> ● Polarity: Automatic, (-) negative polarity indication <br> ● Dewpoint Temperature: -20 °C~80 °C (-4 °F~176 °F) <br> ● Wet Bulb Temperature: 0 °C~80 °C (32 °F~176 °F) <br> ● Operating Conditions: 32°F to 104°F (0°C to 40°C); < 80% RH non-condensing. <br> ● Storage Conditions: 14°F to 140°F (-10°C to 60°C); < 80% RH non-condensing. <br> ● Power: One standard 9V, NEDA 1604 or 6F22 battery <br> ● Dimensions: 175 x 58 x 35 mm <br> ● Weight: 143g <br> ● Humidity/ Temperature Measurement Range: <br> ● ● Humidity: 0%~100%RH <br> ● ● Temperature: -20 °C~80 °C (-4 °F~176 °F) <br> ● ● Resolution: 0.01%RH, 0.01°C/0.01°F <br> ● ● Humidity Accuracy: ±3%RH (at 25°C, 20%~80% RH); ±3.5%RH (At other ranges) <br> ● ● Air Temperature Accuracy: ±0.5°C/±0.9°F (at 25°C); 0.8°C/±1.5°F (all other ranges) <p/> <b> Package List: </b><p/> ● 1 x Digital Psychrometer with Dew Point & Wet Bulb <br> ● 1 x 9V Battery <br> ● 1 x User Manual</br><br/>http://www.amazon.com/gp/product/B01FGV28E8