The detector is plug-in type photoelectronic smoke and heat sensors with addressable analog communications. The sensors transmit an analog representation of smoke density or temperature over a communication line to a control panel. Inside MCU’s EEPROM keep the sensor’s address that can be set by a portable Address setting device. Two LEDs on the sensor are controlled by the panel to indicate sensor status. The detector require compatible addressable communications to function properly. Connect these sensors to listed-compatible control panels only.