BEP Gas Fume Detector with 5m SensorBEP Gas Fume Detector with 5m Sensor GAS DETECTORS The BEP Detectors use microprocessor control to ensure correct sensor sensitivity. The Detectors have the capability to control two sensors which detect both LPG and Petrol, with visual and audible alarms Dual sensors for LPG and Petrol Visual and audible alarms; provision for external alarm Automatic shut off solenoid control with pulse and hold circuit for low power draw (600 GDL only) Self testing