Dakota Alert 4000 Universal Transmitter

Universal Transmitter. It is a simple to use universal-transmitter that is compatible with Dakota Alert 4000 series receivers. It can be used like a wireless doorbell or wireless gate entrance button when used with a Dakota 4000 receiver. It also comes with a magnet and can be mounted to a door frame, window frame, etc. It has a universal dry contact input for connecting to any sort of contact closure. When triggered by the button, magnet sensor, or dry-contact, it sends a wireless signal up to 1 mile to the Dakota 4000 receiver which will play a tune and light up the LED indicator. Operates on a 3V lithium battery that can last up to a year.