PT20 multi-function digital alarm clock. Has thermometer, hygrometer and barometer functions, configure a wireless sensor.These data can be used to predict weather conditions in the . It not only lets you know the time and calendar, Dew point temperature & Heat index.Frost and temperature alert,Indoor comfort level expression,but also helps you in your life.Suitable for a variety of locations, whether you are on the table or on the wall. Simple and modern design is a great tool and home decor.Model: PT20BScreen Type: Positives LCDTemperature Measuring:Indoor measurement ranges: -9.9 ~ 50(14.2 ~ 122)Outdoor measurement ranges: --40 ~ 70(-40 ~ 158)Humidity Measuring: Indoor & outdoor measurable range: 20%RH ~ 99%RH.Barometric Pressure: 800 ~ 1100 hPa(2hPa).Supported pressure unit: hPa/mb/ inHg/ . Size: 172 x 132 x 22mmScreen size:245 x 225 x 65mmPlug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so onDisplay Type:DIGITALUsage:Household Type:ChargerStyle:Standing and Wall HangingDisplay Size:7 Inches & AboveCable Length:1MPressure Sensor:in-buildingFunction:Low battery alarmcolor:WhiteMaterial:ABSPackage Contents:1 x PT20B 2 x Outdoor Sensor1 x plugOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.