LiftMaster 312HMC Universal Radio Control Instruction Manual
Learn how to properly set up and use the 312HM, 312HMC, 412HM, and 412HMC Universal Radio Control with our product manual. This versatile radio control is perfect for gate openers and garage door openers and can be powered by 24V ac/dc or 12Vdc. Choose between constant or momentary closure on the output contacts. Follow our step-by-step installation guide and ensure that you set the power supply voltage, security mode, and output duration correctly. Find out more about this product and its different models today.