Aluminmum material Push button release Release button Dimensions: 86Lx86Wx20H(mm)Standard Structure: Aluminmum Panel, Steel ButtonCurrent Rating: 3A@36VDC MaxOutput Contact: NO\NC\COMMechanical Life: 500000 testsSuitable for Door: Hollow DoorOperating temp: 10~+55°C(14-131F)Operating Humidity: 0-95% (relative humidity)Panel Material: Aluminum panel, Sandblast Finished