Item Type: Temperature Humidity Meter Material: ABS Weight: Approx. 90g / 3.2oz Product Size: Approx. 9x8.5x2cm / 3.5x3.3x0.8in Battery Parameters: 2 x AAA battery (battery not included) Temperature Measurement Range: 0-70 () Humidity Measurement Accuracy: 20%-99% (RH) Features: Record the Maximum/Mimimum value of temperature and humidity in the ALL TIME/24Hrs period Functions: / temperature unit conversion, temperature and humidity memory function, upper and lower limit alarm function, low power prompt function When the humidity is less than 50%, it means DRY (dry). When the temperature is 15.6~26.7 and the humidity is 50%~70%, it means COMFORT (comfort). When the humidity is greater than 70%, it means WET (humidity). 1High?definition LCD display, enlarged and bold font display, the digital display is eye?catching and easy to see. 2Using environmentally friendly ABS plastic shell, the electronic thermometer and hygrometer are durable and not yellowing. 3Equuipped with 45 support frame, scientific viewing angle, and you can fold the support frame as you like. 4Real?time monitoring of indoor temperature and humidity changes, and record the Maximum/MIN value of temperature and humidity in the ALL TIME/24Hrs period. 5When the temperature/humidity is higher or lower than the preset alarm temperature, it will sound five consecutive alarms. 6The upper or lower limit indicator corresponding to the over?limit continues to flash, and the alarm frequency is 60S/time. 1 x Temperature Humidity Meter (Battery Not Included) 1 x Chinese and English Manual