In & Out Thermometer Hygro and Clock TH91

General Descriptions: Large-character LCD display; multi-function; low power consumption; high stability & accuracy Features: Display temperature, humidity and time simultaneously, with external temperature sensor, can display indoor and outdoor Memory of MAX & MIN measuring value 12/ 24 hour displaying system selectable ° C/ ° F unit selectable Integral-hour alarm function Clock & Calendar function ( month and date) Desk-top placing or Wall Hanging Specifications: Temperature range: -50 ~ + 70° C ( -58 ~ + 158° F) , external sensor cable length 2 Meters. Humidity range: 10% ~ 99% RH Resolution: temperature: 0.1° C ( 0.1° F) , humidity: 1% RH Accuracy: temperature: + -1° C ( 1.8° F) , humidity: + -5% RH Power supply: 1.5V ( AAA size) x 1 Product dimension: 10.5x9.8x2.0cm( LxWxT) Weight: Approx. 170g