TRUSTED INDUSTRY LEADER: Enhance the security of your home or business with wireless alert products from Dakota Alert. With over 30 years of expertise in the industry, Dakota Alert is a trusted South Dakota-based company that provides reliable and effective security solutions. ULTRA RELIABLE & DEPENDABLE: The DCMT-4000 motion sensor operates on a single 9-volt battery (not included) and can last for over a year before needing to be changed. No need to worry about solar panel charging - the battery works seamlessly day and night. The motion sensor can detect people or vehicles up to 100' away, and then sends a signal to the receiver up to 1 mile away. This system is perfect for monitoring driveways, back yards, tool sheds, and more. LONGEST RANGE IN ITS CLASS: With a wireless range of up to one mile, the Dakota Alert DCMT-4000 offers a significantly longer wireless range than other products on the market. With a longer range, you can trust that the radio signal will successfully reach the receiver and alert you to any activity at your monitored location. Keep your home or business secure with Dakota Alert's top-rated security solutions. FAST & EASY INSTALL: Protect your property with Dakota Alert's easy-to-install wireless driveway alarm system. Set up in minutes with simple code-learning technology. Customize with up to 16 sensors per receiver or unlimited receivers per sensor. Get reliable security with Dakota Alert. LONG RANGE COVERAGE: The DCMT-4000 has a 1-mile wireless range, which means the radio signal is more likely to reach the receiver. This is especially useful for larger properties or for areas with obstructions that can interfere with signal transmission.