LCD Digital Display Indoor And Outdoor Thermometer Hygrometer Clock Calendar Display Desktop Or Wall-Mounted Lazy Clock Material: ABS Color: White Size: S:90*80*15mm L:100*93*23mm. Temperature measurement range: -20 ° C ~ +70 ° C. Temperature measurement accuracy: ±1 ° C (1.8 ° F). Temperature resolution: 0.1 ° C (0.2 ° F) Humidity measurement range: 10% RH ~ 99% RH Humidity measurement accuracy: ±5% RH Humidity resolution: 1% Features: Indoor and outdoor temperature/humidity display; °C/°F temperature switching display; High/low temperature humidity memory function; 12/24 hour clock; Hourly timekeeping function; Daily alarm clock function; Calendar display function; Desk-top placing or Wall Hanging; Low power consumption; High stability & accuracy; NO backlight. Scope of application: family, office, planting greenhouse, incubator, nutrition room, air conditioning bar, baby room, etc. Precautions: 1. Place in a natural ventilated place, keep away from cold and heat sources, avoid sudden heat, and do not be exposed to sunlight. 2, the use of the environment should be clean and less dust, the impact of contaminated dust is accurate. 3, do not directly contact the steam, do not use the mouth to anger, otherwise it will cause condensation in the device, causing the value drift. 4, Can not put the sensor in the water , to test the water temperature. Package includes: 1* thermometer and hygrometer 1* English manual