Range 
Temperature: -10℃～+50℃ (+14℉ ～ +122℉)
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.： 3.8KG
G.W.： 4.3KG
size of carton： 36.5*32*12.5CM

Features:

* indoor temperature display, indoor humidity display

*time display

* temperature unit ℃/℉ changeable

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

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

* everyday alarm function

*comfort  level display

* Power-supply: 1.5V (AAA ) ×1