{"product_id":"linear-d-22a-1-channel-1-button-handheld-transmitter","title":"Linear D-22A 1-Channel, 1-Button Handheld Transmitter","description":"The Linear D-22A is a compact 1-channel, 1-button handheld digital RF transmitter designed for security systems, panic-button applications, and remote switching. It operates at 303.875 MHz and uses Linear's standard digital format with 256 selectable codes, allowing the transmitter to be matched with compatible receivers. A single pushbutton activates transmission, while the front red LED indicates transmission and battery status. The unit uses one 9-volt battery and includes a removable wall mounting clip. Its compact housing measures approximately 2.16 inches wide, 3.75 inches high, and 0.88 inches deep, making it suitable for portable or wall-mounted use.","brand":"Linear","offers":[{"title":"Default Title","offer_id":53117046784320,"sku":"D-22A","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/2274\/8736\/files\/D_22A_0_N.jpg?v=1788877789","url":"https:\/\/store.greenwaveelectronics.com\/products\/linear-d-22a-1-channel-1-button-handheld-transmitter","provider":"Green Wave Electronics","version":"1.0","type":"link"}