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                          | Doorking Photo-Cell, Doorking 8080-010 Infrared Thru-Beam Photo-Cell |  
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 |  | DoorKing 8080-010 Infrared Thru-Beam Photo-Cell24   VAC/VDC
 Includes sender and receiver, hooded metal enclosures & heater.
 Rated for outdoor use with a sensing distance of up to 165 ft.
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 |  Loop Detectors and Secondary Entrapment Prevention Devices  
                          
                            All DoorKing gate operators are designed with "ports" for our plug-in loop   detectors. This simplifies installation and wiring. Both single channel and two   channel detectors are available. Loops and loop detectors should be used on all   gate operator installations to prevent the gate from closing on vehicular   traffic. DoorKing has available pre-fabricated loops, loop wire, loop test meters and   concrete and asphalt sealant. Two types of photo-beams are available; thru beams and photo-reflective   beams. Thru beams have a range in excess of 100 feet but require both a "sender"   and "receiver." Photo-reflective beams have a limited range (35-feet), but use a   reflector instead of a receiver and are easier to install. Reverseing edges are good devices to use on slide gates to protect   entrapment areas around the gate pocket and gate operator. Photo-beams are refered to as "non-contact" or type B1 devices, while   reversing edges are refered to as "contact" or type B2 devices. Industry safety   standards require that a secondary entrapment prevention device be installed   with all gate operators. Your professional DoorKing dealer will advise you of   the type and number of devices necessary to protect your gate system and to make   it as safe as possible for all concerned. |