1、High‑definition LCD display, enlarged and bold font display, the digital display is eye‑catching and easy to see. 2、Environmentally friendly ABS shell, using environmentally friendly ABS plastic, durable and non-yellowing. 3、The digital temperature and humidity meter is equipped with a support frame with 45° scientific viewing angle, you can fold it at will. 4、Real‑time monitoring of indoor temperature and humidity changes and recording the Maximum/MIN value of temperature and humidity in the ALL TIME/24Hrs period. 5、When the temperature/humidity is higher or lower than the preset numerical value, it will sound five consecutive alarms and the upper or lower limit indicator will continue to flash, and the alarm frequency will be 60S/time. Item Type: Thermometer Hygrometer Material: ABS Weight: Approx. 89g / 3.1oz 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). 1 x Temperature Humidity Meter (Battery Not Included) 1 x Chinese and English Manual