LINEAR D-22A 1Channel, 1-Button Handheld Transmitter

The Model D-22A 1-Channel, 1-Button Handheld Transmitter is a single-channel transmitter normally used as a "panic button" in security systems. It is also used in many remote switching applications where a portable transmitter is required. Each transmission causes the red LED indicator on the front of the transmitter to light, showing that the transmitter is sending a signal and that the battery is in good condition. Features

Test/operate pushbutton Test/operate LED Removable wall mounting clip Optional visor clip available - order #210456-01 Standard digital format: 256 selectable codes Powered by one 9-volt battery (included) Current consumption: 12 mA transmitting RF frequency: 303.875 MHz 2.16" W x 3.75" H x 0.88" D