Range 
Temperature: 
Indoor:-10℃～+50℃ (+14℉ ～ +122℉)
Indoor Humidity:20%RH～90%RH
Battery life: one year
Size of product: 98*58*13mm
Material: ABS
Packaging style: Blister
Packaging material: PVC

Packing details 
Qty. in carton: 50PCS
N.W.: 3.4KG
G.W.: 3.9KG
size of carton: 44*32*11CM

Features:

* indoor temperature display, indoor humidity display

*time display

* temperature unit ℃/℉ changeable

* memory of MAX/MIN value of indoor temperature ，and  display  the recorded time simultaneously

* 2 modes of time display: 12h / 24h

*comfort  level display

* Power-supply: 1.5V (AAA ) ×1