FS-2000E UV flame sensor / fire sensor 33'(10m) detection range ... 7cm flame, flame detector, 10V to 30VDC power, fire guar FS-2000E UV flame sensor / fire sensor / flre alarm Detection SystemUltra ... ListingWeight5.3oz (150g)External AppearanceSensor: ABS Resin (white or black) FS-2000E UV flame sensor / fire sensor