... digital chips ,giving the control unit multiple programmable modes including provision to interface with builidng security system, monitoring the doors ... ,55W,bruthless2Control unit1pcMicrochips, Toshiba MCU3Remote controller1set1 receiver,2 transmitter , 4Radar2pcsBEA,24.125HzTwoMechanism1Track1pc3mm thickness2Carriage4 setsGalvanized and adjustable3Tooth belt1pcfiberglass tensile,nylon surface, 7m ...