GRI's 4400 Switch Series is a heavy duty surface mounted industrial grade contact. A weather resistant rugged aluminum housing and a variety of optional mounting brackets make it ideal for securing chain link gates, overhead garage doors, safes or walk-in freezer doors. Kits include hardware, brackets and mounting instructions. G.R.I.'s 4400 switch series is a heavy duty surface mounted industrial grade contact. A weather resistant rugged aluminum housing and a variety of optional mounting brackets make it ideal for securing chain link gates, overhead garage doors, safes or walk-in freezer doors. A standard 3 foot length of stainless steel cable is offered as is a vinyl jacketed CL-2 type cable. Custom cable lengths of either type are available by special request. A case spacer PN 5226 can also be ordered as a separate mounting accessory. Switch sets include all other mounting hardware. A mounting kit PN 8297 is also available for garage door track mounting. The kit includes a 4402-A switch set, brackets and mounting hardware.