Door Announce is a premier distributor of Rodann Electronics, offering a range of doorway and driveway entry alarm products. They specialize in customer alert driveway and door alarms that utilize "Passive Infrared" motion detection technology. All their products are made in the USA and come with a one-year warranty against manufacturer defects. Door Announce offers personalized customer care, rigorous product quality control, free shipping, and a limited 30-day return satisfaction guarantee. They carry an exclusive line of wireless, hardwired, and self-contained door alert products, as well as a motion-detecting driveway alert system with a range of up to 2,000 feet between transmitter and receiver.