(magnetic switch,magnetic contact,contact switch) 1) Extude aluminum for harsh environment 2) Wire: 22AWG with 22" armored cab Magnetic contacts, Magnetic switch, contact switch Specification:1) Extude aluminum for harsh environment2) Wire: 22AWG with 22" armored cab3)Longer cable available on request4)Swithes and magnets availiable sepereatly5)Optional "L" bracket6)Resisit ,Diode and Supervisory ...