... .9 3.High nsitivity, magnetic sensor ISO9001 UL Wired door magnetic switch (1)Classic design, compact size.(2)Choice ... switch, magnetic contact,magnetic sensor,magnetic contactor still include door window magnetic proximity switch,explosion-proof switch,proximity siwthc etc ... ., and their materials have brass ,PP,stainless steel etc., as pictures show below:SOWAY TECH LIMITED: Market ...