LCD Electronic Digital Temperature Humidity Meter Thermometer Hygrometer Indoor Outdoor Weather Station Clock HTC-1 HTC-2 Note:Batteries are not included Temperature / humidity error value: 10% Large LCD display, multi-function. HTC-1 Indoor thermometer hygrometer HTC-2 In-outdoor thermometer , Indoor hygrometer Memory of MAX & MIN measuring value. 12 hour / 24 hour displaying system selectable. degree C & F unit selectable. Clock, Date & Calendar function (month and date). Everyday alarm function. Desk-top placing or Wall Hanging. Low power consumption. High stability & accuracy. NO backlight Device color: White Temperature range: Indoor & Outdoor -50 ~ +70 degree (-58 ~ +158degF) Humidity range: 10% ~ 99% RH Humidity accuracy: -/+10% RH Power supply: 1.5V*1 (AAA size) Device dimension: 10.5*9.8*2.4cm HTC-2 cable length :1.5meter , There is no sensor for HTC-1 HTC-1 Indoor Temperature & Humidity Meter - No external sensor HTC-2 In-outdoor temperature & Humidity Meter with probe Package Content: 1 x Digital LCD Temperature & Humidity Meter ( Batteries are not included ) 1 x English Manual HTC-1 Indoor Temperature & Humidity Meter - No external sensor HTC-2 In-outdoor temperature & Humidity Meter with probe Description: Material: ABS Color: White/Pink/Green Item dimensions: 43 x43mm Measuring Temperature range: -9.9C~+50C (14.18F~+122F) Measuring Humidity range: 10%~99% RH Battery Operation: Require 1 x CR2032 button battery(not include) _x000D_