Features:
*indoor & outdoor temperature display, indoor humidity display
*time &date display
*temperature unit ℃/℉ changeable
*memory of MAX/MIN value of temperature and display the recorded time simultaneously 
*highest/lowest outdoor temperature alarm function
*2 modes of time display: 12h / 24h
*everyday alarm function
*comfort level display
Temperature Range:
indoor temperature:  -10℃～+50℃ (+14℉～+122℉)
outdoor temperature:-50℃～+90℃ (-58℉～+194℉)
Humidity Range: indoor 20% RH～90% RH
Product Dimension: 145× 80×24 mm
Power-supply: 1.5V (AAA) x1