Garage Door Opener Specifications: 1) Have obtain the CE certificate. 2) With the advancedrolling code remote control technology, control in long 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: 0.5 x0.2 x 0.21m Model JG-CK398Elevating power1000N(8 N·m)Electric motorDC 24VSoft start /stop√TransmissionChainTrackNew model aluminium alloy trackFrequency433.92mHzReceiver model Superheterodyne Storage register12Remote control coding Rolling codeRemote controlSingle / Multi channelAutomaticalclose√Max door size15.75m2Max elevating weight150kgElevating speed10 15cm/sInput electric sourceAC220V±10% 50HzControl distance100mRemote control battery 12V/27AOperating temperature-20 +50 degree centigrade