Garage Door Opener Specification: 1) Have obtained CE certificate 2) With the advancedrolling code remote control technology, long control distance. 3) Hiding design, high speed ,low noise 4) While meeting obstruction, the door stops moving upward or rebounds while it is closing down. 5) With indicator lamp to show the operating status. 6) Auto close down setting timer function is optional to close down door after open up. 7) Connecting siren and infrared detector are optional Packing:Carton dimensions: 0.51 x0.3 x 0.22m Model JG-CKL600Elevating power700N(6 N·m)Electric motorDV 24VSoft start /stop√TransmissionChainTrackIron 4-segment C model trackFrequency433.92mHzReceiver modelSuperheterodyneStorage register12Remote control coding Rolling codeRemote controlSingle / Multi channelAutomaticalclose√Max door size10m2Max elevating weight100kgElevating speed10 15cm/sInput electric sourceAC220V±10% 50HzControl distance100mRemote control battery 12V/27AOperating temperature-20 +50 degree cen