Temperature & humidity sensor can detect real-time temperature and humidity. It also supports LCD backlit screen/ MAX/ MIN/ data hold/ temperature unit switching. With compact size and light weight, it's very easy and convenient to use and is suitable for home, commercial and industrial usages. Features: Temperature & humidity sensor can detect the current/ maximum/ minimum temperature and humidity within the range of -10~60 (14~140) and 0~100% RH. Digital LCD screen with backlight, clear to read day or night, about 10min auto shutdown function to save energy. Powered by a 9V 6F22 battery (not included). Mini size and concise appearance, comes with a lanyard and a storage bag, lightweight and portable. You can carry it with you, place it on desktop, or hang it with the lanyard. Widely used in grain storage and transportation, file management, material management, forestry and animal husbandry, health care, teaching experiment, public sector, home and others. Note: Color and size may be slightly different due to manual measurement and different light conditions. Thanks for understanding. Specifications: Color: Black Material: ABS Display: Digital LCD Backlit Screen Temperature Range: -10~60 (14~140) Humidity Range: 0~100% RH Resolution: 0.1 (0.2); ±5% RH Accuracy: ±1 (2); 0.1% RH Data Hold: Yes MAX/ MIN: Yes / Switchable: Yes Auto Shutdown: about 10min Power Supply: 1 * 9V 6F22 Battery (Not Included) Work Condition: 0~50, 10~90% RH Storage Condition: -10~50, 10~95% RH Item Size: 146.5 * 40.5 * 40.5mm / 5.77 * 1.59 * 1.59in Item Weight (without battery): 60g / 2.12oz Package Size: 175 * 50 * 50mm / 6.89 * 1.97 * 1.97in Package Weight: 114g / 4.02oz Package List: 1 * Temperature Humidity Meter 1 * Lanyard 1 * Storage Bag 1 * User Manual (English)