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It offers a 520 Hz square wave
The SK-RELAY can be mounted directly into a 4" square electrical box with a minimum depth of 2-1/8"
Selectable Rate of Rise and/or Fixed Heat Detector
It can be connected to a 12 or 24 volt fire alarm control panel (FACP) or used as a standalone power supply
Macurco CM-12 12 Series Carbon Monoxide CO Fixed Gas Detector
Simplex 4098-9794 Sensor Sounder Base P2WL-LF It offers a 520 HzThe Simplex 4098 9794 is an analog sensor sounder base that can be used with TrueAlarm photoelectric, heat, or ionization sensors It can be powered by 24VDC or a compatible Notification Appliance Circuit (NAC). The sounder can be manually activated from the CIE.