Specifications: Dimensions: 91Lx28Wx20H(mm) Standard Structure: Stainless steel Panel, Steel Button Current Rating: 3A@36VDC Max Output Contact: NC/COM Mechanical Life: 500000 tested Suitable for Door: Hollow Door Operating temp: 10~+55° C(14-131F)131F)131F) Operating Humidity: 0-95% ( relative humidity) Panel Material: Stainless steel Panel, Wire Drawing Finished Weight: 0.1kg Standard Packing: 70PCS. Features: Stainless steel Panel with Elegant Style 500000 Cycles tests Three Contact Output, Suitable for all kinds of Locks The Best Choice for Access Control