For 12 and 24 volt systemsSimple, quick, Plug & Play installationInstant responseBuilt-in retractorLow profile designSelf-contained key pad with waterproof Plug & Play Deutsch connectorsWiring harness length 30" (76.2 cm) from the back of the switch bezel36" power pigtail for control box2-1/16" hole cut-out size, overall key pad size of 2.75" x 2.75"4.08" clearance required from the back of the key pad's mounting location2 high-intensity LED Indicator displays show the exact position of trim tabs at all timesPhoto Eye for optimum viewing in all light conditionsBacklit key pad for optimum viewing at nightSelf-Check feature only available on the 15170001