These flame detectors give high immunity to false flame sources. They have internal self-test sources that check the detector's operation when remotely instructed. They can operate on a conventional 2-wire (14-28 Vdc) fire systems or 4-20mA process control systems. Relay contacts are also available for Fire and Fault signals. 

The detector's operating modes can be user selected giving the choice of alarm currents, response times, latching or non-latching outputs and sensitivity.