| Brand | Linear |
|---|---|
| UPC | na |
Check the listing for details. Linear D-21 wireless transmitter 303.5 MHz 9v Battery Not Included. Condition: New – Open box. Listed at 34.99 USD. The Linear D-21 wireless transmitter operates at a frequency of 303.5 MHz and requires a 9v battery (not included) for power. Transmits when circuit closes.
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