specs

DECT Frequencies: 1880 ~ 1900MHz
RF frequency: F1 869MHz
Powered by 1 CR123A 3V lithium battery
2.8 year battery life
Degree of protection IP67
-10 ° C ~ + 45 ° C operating temperature
85% relative humidity (non-condensing)
Dimensions: Ø60 x 24 mm