SECO-LARM’s RF transmitter series includes one-, two-, three- and four-button models in updated, modern housings available in fixed code or CODEBUMP codehopping models. They have more than 68 billion possible codes in pre-coded models, and more than 18 quintillion possible codes in CODEBUMP models. The LED transmission indicator appears only when buttons are pressed. The transmitters operate up to 500 ft. and have RF anti‑scan protection. All models are FCC certified, with additional IC and/or CE certification for certain models. Either 315MHz or 433.92MHz is available and they are compatible with all SECO-LARM receivers. OEM/ODM private label is available. Also, they include a slimline design: 1-1/4 in. x 2-3/6 in. x 5/16 in. Replacement batteries are available: X-930-096 (CR2032).