2 pcs Garage Gate Remote Control for Alutech AT-4 AR-1-500 AN-Motors AT-4 ASG1000 AT4 AT 433MHz Roll Installation: Wireless Frequency: 433.92 MHz Code: Rolling Code Battery: 12V 27A Radio Transmission Distance: 30-100 m (Open Area) Scope of Application: Garage Door, Alarm, Automatic Door, Rolling Door, etc. Compatible Model: Alutech AT-4, AN-Motors AT-4, Alutech AnMotors ASG1000, Alutech AnMotors AR-1-500, Alutech AT-4 600 Programming Transmitters to Receiver The remote control has the same function as your old remote. It must be programmed with the existing receiver following the original manual instructions. Color: Black + Silver Material: ABS Package Contents: 2 x Remote Control Note: Only the items listed above are included. Other products are not included. Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.