Cuts circles from 1 7/8'' to 8 1/2''. Innovative, ratchet mechanism is efficient and easy to use No more dragging the blade through bunched fabric or dealing with time consumi.
This means that smoke emitted from the incense will set off a smoke alarm when in range of the detector.
A majority of fire experts do recommend that both types of smoke detectors should be used in the home for better safety. That way if one type of alarm doesn't go off the other type hopefully will. It is possible to link multiple wireless smoke detectors together so that if one alarm sounds all of them will.