The newest addition to Dakota's sensor systems, the Dakota Alert 4000 wireless series offers a wireless range of up to 4000 feet from sensor to receiver. This is much longer than most competing systems. Dakota Alert 4000 systems provide exceptional placement flexibility on larger properties. Wireless sensors include PIR motion sensor, magnetic vehicle probe sensor and rubber hose sensor. The system is flexible, allowing multiple sensors and multiple receivers so you'll never miss a visitor or customer again.