Transmitters specifications: Frequency: 433.92MHz, or Customerized frequency250 million rolling code, or Fixed codeRemote distance: ≤ 30MBattery 12V, 27ASpecifications of the photocell: Photocell / SensorUsed for Garage Door OpenerItem: MO. A P60Photo beamTwo wires connectionWorking distance: 10mAdvantage/Our advantage1. Low MOQ: One set is available for checking our quality first conveniently. 2. Good Quality: Your client satisfied on our quality. You can get good. Reputation from your market and obtain more orders. 3. Good Service: Our professional service before and after sale. 4. The reasonable price5. Fast & Cheap Delivery: We have big discount from forwarder (Long Contract). 6. OEM is welcome. About Master: Master Well Enterprise Limited, is a truly corporation specializing in Doors & Windows Automatic System. Relying on our excellence of business performance and R & D, we have enjoyed globally recognized reputation in successfully providing quality products at a competitive price and professional technical service to a wide range of clients worldwide.