- Human Presence Sensor
- Model: RDM-SIU0202DRC
- The dual-element sensor combines infrared & ultrasonic dual-element technology with a high-sensitivity probe featuring a large-area window and densely packed optical lenses with ultrasonic sensor technology, providing ultra-micro movement and ultra-high sensitivity detection functions.

- Features
- Human infrared and ultrasonic dual-element, micro-movement monitoring
- One-way IO
- Surface-mounted or recessed ceiling installation
- Supports delay function
- Circular detection coverage with a diameter of 8~9 meters

Device Details
- Model: RDM-SIU0201DC
- Dimensions: 9735 mm
- Operating Power: 12V
- Detection Coverage: Circular with a diameter of 8~9 meters
- Sensing Technology: Infrared & Ultrasonic Combined Technology
- Signal Output Method: Dry Contact Signal Output
- Solid-State Relay: 50mA, 30V
- Delay Time: 5 seconds to 30 minutes
- Light Sensitivity: 10LUX~1024LUX
- Installation Method: Recessed or Surface-Mounted Ceiling Installation
- Standard Installation Height: 2.4m to 3.0m
- Recessed Opening Dimensions: 75.0mm
- Operating Temperature: -40°C to 55°C
- Enclosure Material: Fire-Rated PC Material
- Accessories: One pair of suspended ceiling false ceiling fixing spring clips