Lens:Horizontal Angle≥30°
Vertical Angle≥75°
Induction Distance:0.5-5m
The condensation on the Lens surface will affect the output.
The Lens can not be blocked, the installation needs to open holes.
When the ambient temperature is close to the human body temperature 37 °c, the induction distance becomes shorter, and the pyroelectric principle is used.
High Price, low power consumption, no red light, no hair set end, angle range controllable, effective distance short.