Kidde KI-IB MCF The E50 Speaker Strobe is

The E50 Speaker Strobe is a Semi-Flush  25/70 vrms

All detectors shall be listed by Underwriters Laboratories Inc

For semi-flush installation

It monitors the temperature of the surrounding air and analyzes the data from the sensor to determine whether to initiate an alarm

Refer to the Fire•Lite Device Compatibility Document PN 15384 for a complete list of compatible devices

Kidde KI-IB MCF The E50 Speaker Strobe isThis base includes a built in line fault isolator for use on Class A circuits. A detector must be installed for it to operate. The isolator base does not support the GSA LED Remote LED. The process repeats beginning on the other side of the loop controller.