Place of Origin : Wenzhou,China

frequency DC3/4wire:500/300Hz DC2wire:300/200Hz AC:20Hz
Ambient temperature -40...70℃
Shell material Copper
Protection grade IP67
Temperature drift ≤±10%
Protection circuit Overloaded,short-circuit,reverse polarity
Indicator LED
Hysteresis 1...20%
Connection Silica Gel Cable 2m
Housing size M30×1×60 http://www.sensorsfactory.com/