Home > Products > Fire Detection DevicesSeries 65 Conventional Detection Series 65 Optical Smoke Detector The Series 65 Optical Smoke Detector incorporates a pulsing LED located within the housing of the detector. View Product Series 65 Heat Detector The Series 65 Heat Detector monitors temperature by using a dual thermistor network which provides a voltage output. View Product Series 65 Standard Base The Series 65 Standard Base enables detectors to be easily fitted which is useful when fitting to suspended ceilings. View Product