Hytronik HIR01/FM Flush Mount Passive PIR Motion Sensor for use with HC438V or HCD438

The Hytronik HIR01/FM is a flush mountable detached Passive Infrared (PIR) sensor head designed for integration with Hytronik power bases (HC438V or HCD438) to enable motion detection and daylight harvesting (constant lux control). It has a compact form factor suitable for mounting in luminaires or ceiling tiles where space is constrained. Key Specifications • Operating Voltage: 5V DC. • Detection Principle: Passive Infrared (PIR). • Detection Range: Maximum 8m x 5m (Diameter x Height). • Detection Angle: 30° to 150°. • Mounting Height: Maximum 5m. • Connectivity: Integrated cable with an RJ12 connector for "plug-and-play" interface with the main controller body. Functional Capabilities • While the HIR01/FM acts as the detection interface, it enables the following system functions when paired with a compatible driver: • Daylight Harvesting: Continuous monitoring of ambient light to calculate required artificial light output for a constant lux target. • Tri-Level Control: Supports hold-time, stand-by period, and stand-by dimming levels (10%–50%). • Environmental Rating: IP20 for indoor use, with an operating temperature range of -20°C to +55°C.