Range 
Temperature: Indoor:-10℃～+50℃ (+14℉ ～ +122℉)
Outdoor:      -50℃～+70℃ (-58℉ ～ +194℉)
Indoor Humidity: 20%RH～90%RH
Battery life: one year
Size of product: 82*70*20mm
Material: ABS
Packaging style: Blister
Packaging material: PVC

Packing details 
Qty. in carton: 50PCS
N.W.: 4.2KG
G.W.: 4.7KG
size of carton: 36.5*32*14CM

Features:

* indoor & outdoor temperature display, indoor humidity display

* temperature unit ℃/℉ changeable

* memory of MAX/MIN value of  indoor & outdoor temperature

*comfort  level display

* Power-supply: 1.5V (AAA ) ×1