1Long 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. 2Multifunctional, it can measure indoor temperature and humidity, with time function, timer function, countdown function, backlight function and alarm prompt function. 3Convenient for storage and placement, the back cover with bracket and 2 magnets, which can be absorbed on the water tank or air conditioner, or place it directly on the table. 4Adopts 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. 5Air convection and symmetrical style, Symmetrically designed air inlet holes on both sides create a large amount of air circulation to ensure a large area of air to enter, ensuring accurate temperature and humidity data.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: 2Humidity 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 / 4.7oz1 x Timer (Battery Not Included)1 x English User Manual1. Please allow 0-2 cm 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.