Features:
* indoor & outdoor temperature display （5 seconds automatic switch display）
* Memorized MAX/MIN values of indoor/outdoor temperature
*Time & date display (5 seconds automatic switch display)
* temperature unit ℃ /℉ changeable
* Clock with sound & light alarm
Temperature Range:
indoor：-10℃～50℃（+14℉～+122℉）
outdoor：-50℃～70℃（-58℉～+158℉）
Product Dimension: 76×68×24mm
Power-supply: 1.5V(AAA )×1