2pcs Garage Gate Remote Control For Alutech At-4 Ar-1-500 An-motors At-4 Asg1000 At4 At 433mhz Roll<br> Installation: wireless<br> Frequency : 433.92MHz<br> Code:Rolling code<br> Battery:12V 27A<br> Radio transmission distance: 30-100m (Open area)<br> Scope of application: garage door, alarm, automatic door, rolling door, etc.<br> Compatible Model: for Alutech AT-4 AN-Motors AT-4 Alutech AnMotors ASG1000 Alutech AnMotors AR-1-500 Alutech AT-4 600<br> Programming transmitters to receiver<br> The remote control is the same function as your old remote.it should programming with old receiver according to your old Manual when you .<br> color:Black + silver<br> Material:ABS<br> Package Contents:<br> 2 x Remote Control<br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.