This instrument can be widely used for laboratory, industrial, engineering test and other applications; and exclusively used to measure humidity, air temperature, wet bulb temperature and dew point temperature.
Features:
Measure temperature & humidity, wet bulb and dew point temperature.
Large LCD display with backlight, easy and clear for reading.
High accuracy and fast response time. 
Max./Min. data and data hold functions.
Auto power off and sleep mode.
Specifications:
Color: Black / Red(Optional)
Material: ABS
Humidity Range: 0~100%RH
Humidity Resolution: 0.01%RH
Humidity Accuracy: ±2%RH(at 25°C/77°F, 20%~80%RH); ±2.5%RH(at other)
Temperature Range: -40~105°C / -40~221°F
Temperature Resolution: 0.01°C / 0.01°F
Temperature Accuracy: ±0.5°C/±0.9°F(at 25°C/77°F); ±0.8°C/±1.5°F(at other)
Dew Point Temperature: -40~105°C / -40~221°F
Wet Bulb Temperature: 0~80°C / 32~176°F
Response Time: 0.5s
Display: LCD with Backlight
Operating Temperature: 0~50°C / 32~122°F
Storage Temperature: -10~60°C / 14~140°F
Power Supply: 1 * 9V Battery (NOT Included)
Size: 215 * 80 * 45mm / 8.46 * 3.15 * 1.77in
Weight: 122g / 4.3oz
Package Size: 26 * 10 * 5cm / 10.24 * 3.94 * 1.97in
Package Weight: 186g / 6.57oz
Package List:
1 * Thermo-Hygrometer
1 * User Manual(English)