V-725 Vibcon seismic detector

Vibcon V-725 Earthquake Safety Device- Operating principle: magnetic, setting for horizontal acceleration: 100 to 170 Gal (at ordinary temperature), indication by color, manual reset and testing by turning knob, power supply 125/250 V AC, 15 A resistive load, 6 A motor load, switch action: SPST, dust proof structure, wall mounting, allowable ambient temperature: -10 C to 70 C