Flame detector UV (ultraviolet) and IR (infrared), with the same performances as S40/40L, but with the exception that the IR sensor works a wavelength of 4,5?m and is only suitable for hydrocarbon fires. Requires S40/40-001 support and a power of 24VDC 150mA. For explosive zones, also requires a F-81212N stuffing box. Possibility of models with analogical output of 4-20mA and without assistant relay. consult availability.