Adopts refined 2 dual PIR sensors, intelligent digital chip.
Advanced "true motion recognition and pet immunity" technology to avoid interference.
Remarkable pet-immunity function to prevent pets under 25 kg.
Germany imported optical filter to block motley light up to 99%.
special lens anti UV to reduce false alarm at maximum.
Automatic memory of environment change to avoid false alarm triggered by hot/cold air current or operation machines.
Super filter can be used outdoor to avoid interference that other detector cant avoid.
Fully sealed design, two-layer water proof, macromolecule film plating for indoor and outdoor installation. Model  WMD-85F  WMD-85D 
Detection distance  12m×12m 
MW frequency  10.525GHz 
Installation height  1.8~2.4m(Recommendation height 2.1 m)  2~2.7m 
Power input  9.0~15.0 VDC 
Area  (11+11+9)×2 
Anti white light  15000LUX 
Pet immunity  25kg 
Environment  temperature:-10℃~50℃ self-adaption 
Application  outdoor/indoor 
working current  ?65mA  ?30mA 
Relay  solid relay 
Anti RF/EMI  10V/M (10MHz~1000MHz)