Features Digital thermometer hygrometer, equipped with LCD display screen, can display temperature, humidity and time intuitively and clearly at the same time. Temperature and humidity sensor window, air convection ventilation design, increase the air circulation speed in the machine, more accurate. Multi function, with clock, alarm clock, hygrometer, thermometer, calendar function, suitable for home, pharmacy, greenhouse use. Low power, high accuracy, high stability, maximum/lowest temperature and humidity memory function, 12/24 hour conversion, ℃/℉ switch display. 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 FunctionsMeasuring RangeBasic AccuracyTemperature-50℃-70℃±0.5℃ (0℃-40℃)Or±1℃-58℉-158℉±2℉Humidity(10%-99)%±5% (35%-75%)Or±10%Special FunctionCTH-609Clock, Calendar Function√Hourly Timekeeping Function√Alarm Clock Function/8 Minutes Snooze Function√Maximum/Minimum Value Storage Function√Sampling Rate1 time/10 secondsLong Distance MeasurementRemovable external sensor: cable length is about 2 metersSensor ConfigurationBuilt in temperature and humidity sensor, external temperature sensorLCD Screen SizeApprox. 67x85mm / 2.6x3.3in Package List: 1 x Thermometer Hygrometer (Battery Not Included) 1 x Manual Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List 1 x Thermometer Hygrometer (Battery Not Included) 1 x Manual