Proximity Sensor 1.Long life:>1000000 times 2.working temp:-20~+80 3.Wide apllications Proximity Sensor Working Theory:When the magnet is reach the magnetic reed switch's Sensing distance, the output cantact action is occur,So the magnetic reed switch that set in the proximity switch can control the outputcontact's on-off.Application:Security alarm, air bag ,seat belt,switch on for fridge,mobile ...