Features:* Measures indoor and outdoor temperature(C/F) and humidity* Indoor temperature range:-10℃-50℃(14℉-122℉)* Outdoor temperature range:-20℃~60℃(-4℉~149℉)* Indoor and outdoor humidity range:1%-99%* Max/min record of temperature & humidity (in & out)* Weather forecast for next 12-24 hours* Calendar function with Month/Date or Date/Month display format selectable* Time, alarm and snooze function* Time display in 12/24H* Weekdays in 7 languages:GER (German), ENG (English), FRE (French), ITA (Italian), SPA (Spanish), DUT (Dutch), SPA (Spanish), DAN (Danish)* Temperature tendency display in arrow* Up to 3 RF channels for outdoor sensors (only one sensor included)* White backlight lasts for 20 seconds* Sound / Mute Mode SwitchSpecification:Item size:Main Unit: 119x21.5x80mm(4.68"x0.85"x3.15"in)Sensor: 60 x 27 x 96mm(2.36" x 1.06" x 3.78"in)Box size:155x37x170mm(6.10"x1.46"x6.69"in)Net weight:280g Package weight:300gColor:WhiteMain Unit Powered by 2 x AA batteries (Not Included)Remote Sensor Powered by 2 x AA batteries (Not Included)Package List:1x 341 In/out THERMOMETER1x WIRELESS SENSOR1x Instruction Manual