HABOTEST HT618 Handheld Temperature Humidity Meter LCD Backlight Digital Psychrometer Thermo-hygrometer Hygrometer Thermometer Gauge Tester with Dew Point Wet Bulb Temperature Storage Bag Batteries Not Included

Features:
[Wide Application] Can be applied in cultivation garden, laboratory, wine cellar, farm, storage room, home, etc.
[Accurate Measurement] Able to measure relative humidity, ambient temperature, wet bulb temperature and dew point temperature.
[Practical Function] Unit conversion between Celsius and Fahrenheit; auto power off in 30 minutes without any operation; maximum/minimum/average value mode is enabled.
[Data HoldLogger] Press the Data Hold button to freeze the displayed reading; able to store 99 units data and long press to view/delete.
[User Friendly] Measures 7.08*2.36*1.18in and weighs only 3.98oz, featuring compact and lightweight; and LCD backlight ensures clear visibility even in low-light area.
Note:
*Batteries are not included.
*When moving from one temperature/humidity extreme to another, allow time for the Meter to stablize.
Parameters：
Temperature
Range: -20.0℃~60.0℃(-4.0℉~140.0℉)
Accuracy: 0.0℃~45.0℃(32℉~113℉) 1.0℃/2.0℉; 1.5℃/3.0℉(other)
Resolution: 0.1℃ / 0.1℉
Humidity
Range: 0.0%~99.9%RH
Accuracy: 3.0%RH(20%~80%); 4.0%RH(other)
Resolution: 0.1%
Wet Bulb
Range: -20.0℃~60.0℃(-4.0℉~140.0℉)
Accuracy: 0.0℃~45.0℃(32℉~113℉) 1.0℃/2.0℉; 1.5℃/3.0℉
Resolution: 0.1℃ / 0.1℉
Dew Point
Range: -50.0℃~60.0℃(-58.0℉~140.0℉)
Accuracy: 0.0℃~45.0℃(32℉~113℉) 1.0℃/2.0℉; 1.5℃/3.0℉
Resolution: 0.1℃ / 0.1℉
Data Storage: 99 groups
Auto Power Off: 30 minutes
Power Supply: 3 * 1.5V AAA(LR03) batteries(not included)