... size 4.Easy to c 2013new industrial air flow sensor ,stego air flow monitor, air flow monitor,industrial ... blue)Mountingalternatively integrated in protective grille (see table), mounting clamp or mounting clipCasingplastic according to UL94-HB, blackFitting positionbidirectional ... , not even short-term (voltage/current peaks). The resulting voltage and current peaks of inductive or capacitive loads ...