Linear SD 2-Button Lockout Transmitter 2-Channel (SNT00299)

The Linear D-22D is a Two-Button Two-Channel Handheld Digital Radio Transmitter with a special lock-out feature. The transmitter can perform a variety of remote switching tasks when used with any of Linears Standard Digital D Series Receivers. Typically the D-22D is used in wireless or hybrid wireless/hardwire security systems. The transmitter is powered by a 9-volt battery. Pressing either button will send a Channel 1 signal pressing both buttons will send a Channel 2 signal. Hold buttons for at least 2 seconds to activate the transmitter. The red LED on the face of the transmitter will glow as the unit transmits and the receiver with the matching digital code will activate. The Standard Digital radio format provides up to 256 different digital codes. The code is set using the 8-position coding switches in the transmitter and receiver. D-22D transmitter switch key 1 is unused and can be set in any position. The transmitter pushbuttons control the signal that would normally be co