BES stock a range of accessories for interlock systems and gas solenoid values. These include Fan Current Sensors, CO2 Detectors, Knock off switches, Fan pressure switches and indicator lights.
11841076Accessorieshttps://www.bes.co.uk/natural-gas-lpg/gas-vent-interlock/accessories/1/2/5/1076/11841/Natural Gas & LPG/Gas/Vent Interlock/Accessories