The DT-4D Linear remote will work with Linear Delta 3 series receivers using On/Off dip switches to set the code. Match the switches to a working remote or receiver to set the code.
Use With Linear Delta 3 Receivers For Multiple Door Operators
Battery, Visor Clip, Instructions Included
Dimensions: 2.16" W x 3.75" H x .95" D
Ships The Next Business Day.