Characteristic Parameter: Delay distance: 10% below of the detection distance.Detection object: Magnetic metal(the detection distance decreases when it is non-magnetic metal).Consumption current: 1.7mA below.Control output: 400mA below. Loop protection: Surge absorption.Ambient temperature & humidity: -30+65 ℃; 3595%RH.Insulation impedance: 50Mohm above(DC500 megameter) between charging part and housing.Withstand voltage: AC 1000V 50/60Hz 1 min between charging part and housing.Temperature influence: temp range -3065 ℃ at 23℃, 15% detection distance. Temp range -2560 ℃ at 23℃, 10% detection distance.Voltage influence: Inside 15% rated supply voltage range, at rated supply voltage value, inside 10% detection distance.Protection structure: IP67.Material: (Housing: Nickel plated brass), (Detection surface: ABS)