DNT00026 Linear Delta 3 Mini DT-1 Key Chain Garage Gate Remote 310mhz

Single Button Key Ring Remote Transmitter For Delta 3 Linear Garage Door Opener and gate receivers with 310mhz frequency. 
Model Number: Mini - T Delta 3 ladybug

Miniature key ring transmitter black case white button key ring supplied test/operate LED 256 selectable codes. 
Features

Activates one Delta-3 receiver
Test/operate LED
Key ring supplied
Power: 12 V battery
Frequency: 310 MHz
Codes: 256 (set by dip switches)

8 dip switches
Dimensions: 2.2 x 1.42 x .66 inches

Manufactured by Linear part number DNT00026