Model 9001 emergency alarm and light system will be operated by a double pole, double throw flow switch, which contains multiple sets of contacts for remote activation and activates an amber flashing light and buzzer at 90 db, audible at 10 feet (buzzer can be silenced during testing). Switch activates at 2.4 gpm. System can be mounted to pipe or wall. Voltage: 120 VAC, 50 or 60 cycles. Supply: 1-1/4 in IPS. Model 9001 is CSA electrical certified, type 4.