Features 1、Digital thermometer hygrometer, equipped with LCD display screen, can display temperature, humidity and time intuitively and clearly at the same time. 2、Temperature and humidity sensor window, air convection ventilation design, increase the air circulation speed in the machine, more accurate. 3、Multi function, with clock, alarm clock, hygrometer, thermometer, calendar function, suitable for home, pharmacy, greenhouse use. 4、Low power, high accuracy, high stability, maximum/lowest temperature and humidity memory function, 12/24 hour conversion, ℃/℉ switch display. 5、The thermometer hygrometer can be used vertically or suspended, and can be conveniently placed in different positions to meet the needs of daily use. Specification Item Type: Thermometer Hygrometer Material: ABS Model: CTH-609 Power Supply: 1 x AAA 1.5V Battery (Battery Not Included) Purpose: Industrial and domestic temperature and humidity measurement Basic Functions Measuring Range Basic Accuracy Temperature -50℃-70℃ ±0.5℃ (0℃-40℃) Or±1℃ -58℉-158℉ ±2℉ Humidity (10%-99)% ±5% (35%-75%) Or±10% Special Function CTH-609 Clock, Calendar Function √ Hourly Timekeeping Function √ Alarm Clock Function/8 Minutes Snooze Function √ Maximum/Minimum Value Storage Function √ Sampling Rate 1 time/10 seconds Long Distance Measurement Removable external sensor: cable length is about 2 meters Sensor Configuration Built in temperature and humidity sensor, external temperature sensor LCD Screen Size Approx. 67x85mm / 2.6x3.3in Package List 1 x Thermometer Hygrometer (Battery Not Included) 1 x Manual