2 pcs Garage Gate Remote Control for Alutech AT-4, AR-1-500, AN-Motors AT-4, ASG1000, AT4, 433MHz Rolling Code 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 Models: 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 should be programmed with the existing receiver according to the original manual. Color: Black + Silver Material: ABS Package Contents: 2 x Remote Control Note: Light and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowed error is +/- 1-3 cm.