The 3000 Series Wireless Transmitter is a universal wireless remote that is compatible with Dakota Alert's 3000 series receivers such as the Wireless RF Reciever. Activated by the press of the button or triggered by a normally open or normally closed contact, the 3000 Series Wireless Transmitter can function as a garage door opener, doorbell transmitter, panic button or alert system transmitter. With a 600-foot wireless transmission range, it is ideal for hard-to-wire locations. What's Included # 3000 Series Wireless Transmitter / Remote # Mounting bracket and screws # Instructions Applications Use any variety of open or closed contact sensor to transmit a signal up to 600 feet away. When used in conjunction with a magnetic contact, a signal can be sent to your 3000 series receiver to notify you when a door, window or drawer is opened (or closed). In combination with a 7115X, you can be notified of a leaking appliance or broken pipe. Paired with a Driveway Probe and Wireless RF Receiver, your garage door can be opened as soon as you pull into the driveway.