EPRW Wireless optical pulse reader

Wireless electric pulse reader
Specifications for Wireless optical pulse reader
Supply voltage Battery AA 1.5V L91 Lithium x 2
Battery life 6 years (calculated on activation every 5 minutes)
Frequency 868 MHz
Ambient temperature -10…+50°C
Ambient humidity up to 85 % RH non-condensing
Protection class IP30
Dimensions, external (WxHxD) 86 x 86 x 30mm
Dimensions (WxHxD) 19 x 27 x 17mm
Cable length 1m