... frequency Dust proof,vibration proof,water proof and oil proof LM14 Inductive Proximity SwitchSpecification:1.inductive ... , proximity switch2.power voltage and output type: dc6~36v(npn, pnp, dc two line) and ac 90~250v(scr, ... output). 2.npn, pnp and dc two line can be equipped ... current: there are two type in this field: dc and scr . dc: 200ma(lm18, lm22, lm24, lm30 ...