D-21A Linear wireless transmitter. Also known as a SNT00004.
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- Pressing the test pushbutton on the front of the transmitter will also cause the transmitter to send a signal
- 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
- One N/O circuit
- Two second transmission
This unit operates 303.875 MHz. These were made to operate on several different frequencies so make sure yours matches. We also have some 313.5 which have not been listed on this website. Contact us through the "Contact Us" link at the bottom of the page.
New with one year warranty.
Product Code: SNT00004