Silvercrest SPO 55 Instructions For Use And Safety Notes page 61

Admissible
operating
conditions: +10 °C to +40 °C, ≤ 75 % relative
humidity, 700–1060 hPa ambient
pressure
Admissible
storage
conditions: -40 °C to +60 °C, ≤ 95 % relative
humidity, 500–1060 hPa ambient
pressure
Power supply: 2 x 1.5 V
Battery life: 2 AAA batteries provide
approx. 2 years of use at
3 measurements per day
(60 seconds each).
Classification: IP22, applied part type BF
Expected service life: 3 years
Memory spaces: 100
AAA batteries
GB/IE 61