DHI-ARD1231-W Wireless PIR

The DHI-ARD1231-W Wireless PIR (Passive Infrared) sensor is a versatile security device designed for reliable motion detection in residential and commercial environments. It features a wide 12m detection range with a 90° angle, ideal for covering large areas. With pet immunity up to 18kg, it minimizes false alarms caused by pets. Bi-directional communication ensures robust signal transmission up to 150m in open spaces. The sensor includes a built-in tamper switch for added security and can be wall-mounted at a height of 2.2~2.5m. Offering two sensitivity levels and a long battery life of up to 3 years, it is constructed from durable ABS plastic and is certified with CE, FCC, and MABISZ standards for quality and reliability.