Vibration Switch, Malfunction Detector, Contact Type SPDT, Amps .5-7 Max, Voltage 24VDC, Frequency Range 0 to 300 Hz, Horizontal Range 0 to 4.5 G, Vertical Range 0 to 3.5 G, Reset type Remote Electrical or Manual, Enclosure Raiting Cl 1, Div1, Gr B, C, & D, Enclosure Material Aluminum, Temperature Range -13 to 143 F, Length 6 In, Width 6 In, Height 5.13 In, Standards UL and c-UL Certified