DSC LC-103-PIMSK Motion Detector

The DSC LC‑103‑PIMSK is a high‑performance dual‑technology motion detector that combines passive infrared (PIR) sensing with a microwave Doppler module to provide advanced intrusion detection with reduced false alarms. Designed for indoor use, it supports pet immunity (up to ~ 25 kg / 55 lb) and includes an anti‑masking feature that protects the detector from tampering or blocking of its field of view. Installation is straightforward whether wall‑ or corner‑mounted, and the unit accepts a wide input voltage range of 9.6 to 16 V DC, drawing approximately 20 mA in standby and 25 mA when active. Its quad‑element PIR sensor and microwave channel continuously analyze motion across the full spectrum of movement speeds and environmental influences, enabling reliable differentiation of human intruders versus pets or background motion. Built with high immunity to radio‑frequency and electrostatic interference, it operates reliably in environments from ‑10 °C to +55 °C. With its compact dimensions (118 mm × 62.5 mm × 41 mm) and a weight of only about 102 g it fits neatly into security wiring setups and is compatible with major control panels. The anti‑mask feature triggers an alarm if the lens is obscured at a distance of 0.4 m (factory) or 0.8 m (optional) from the detector surface. Ideal for residential or commercial installations where pet movement is expected yet reliable detection of unauthorized activity remains critical.