Description
Direct Wire Photoelectric Smoke Alarm With Relay 120 Volt Temporal 3 Evacuation Piezo Horn With 3100Hz Frequency 3 Position Test Switch One Set Form A Relay Contacts 9 Volt Battery Included Interconnectable With Gentex Tandem Legacy Smoke Alarms Low Or Missing Battery Indicator Diameter 53/4 Mfg 9123F
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