Feature:1. Long timing setting, with timing and countdown functions, the timer can be set up to a maximum of 23 hours 59 minutes and 59 seconds; the shortest is 1 minute. Suitable for long time work, study, cooking, etc.2. Multifunctional, it can measure indoor temperature and humidity, with time function, timer function, countdown function, backlight function and alarm prompt function.3. Convenient for storage and placement, the back cover with bracket and 2 magnets, which can be absorbed on the water tank or conditioner, or place it directly on the table.4. Adopts high quality metal frame, safe, reliable, bright and durable for long time use. The display screen adopts mirror surface, white backlight, easy to display and read.5. convection and symmetrical style, Symmetrically designed inlet holes on both sides create a large amount of circulation to ensure a large area of to enter, ensuring accurate temperature and humidity data.Specification:Condition: 100% Brand NewItem Type: TimerHousing Material: ABS + MetalModel: CH-918Color: BlackTemperature Measurement Range: -10℃-50℃ (14℉-122℉)Humidity Measurement Range: 10%-99%Countdown Range: Longest 23 hours 59 minutes 59 seconds; shortest 1 minuteTemperature Error: 0℃-40℃; ±1℃, Others: ±2℃Humidity Error: ±3%Measurement Resolution: Temperature 0.1℃/0.1℉; Humidity 1%RHTemperature Measurement Cycle: 10sPower Supply Mode: 2 x AAA Battery (Not Included)Screen Size: Approx. 58 x 27 mm / 2.3 x 1.1 inProduct Size: Approx. 78 x 24.5 mm / 3.1 x 1 inWeight: Approx. 134g / 4.7oz Package List:1 x Timer (Battery Not Included)1 x English User ManualNote:1. Please allow 0-2 cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed i