Range 
Temperature:Indoor：-10℃～+50℃ (+14℉ ～ +122℉)
Outdoor：-50℃～+90℃ (-58℉ ～ +194℉)
Indoor Humidity： 20%RH～90%RH
Battery life： one year
Size of product： 150*88*24mm
Material： ABS
Packaging style： Blister
Packaging material： PVC

Packing details 
Qty. in carton: 50PCS
N.W.： 10KG
G.W.： 11.1KG
size of carton： 57.5*35.8*29.2CM

Features:

* indoor & outdoor temperature display, indoor humidity display

* temperature unit ℃/℉ changeable

* memory of MAX/MIN value of temperature

*highest/lowest outdoor temperature alarm function

*comfort  level display

* Power-supply: 1.5V (AAA )×1