The DT-2A 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 Two Linear Delta 3 Receivers For Two Door Openers
Battery, Visor Clip, Instructions Included
Dimensions: 2.16" W x 3.75" H x .95" D
Ships The Next Business Day.