2.4GHz NRF24L01+PA+LNA SMA Wireless Transceiver Antenna

Product Description The 220V AC PIR Infrared Automatic Motion Detection Sensor Switch is an intelligent, energy-saving controller designed for hands-free lighting management. Operating directly on standard AC mains, this compact module uses passive infrared technology to detect the thermal signatures of moving human bodies. Once triggered, it automatically activates the connected load (such as LED bulbs, exhaust fans, or alarm buzzers) and keeps it powered for a pre-set duration before shutting off. Featuring a built-in light sensor (LDR), the switch is optimized to only function in low-light or dark conditions, preventing energy waste during the day. Its small footprint and high-voltage compatibility make it ideal for hallways, bathrooms, warehouses, and security lighting installations.

Key Features

• Direct AC Operation: Eliminates the need for external DC adapters; connects directly to 220V AC mains for simplified home automation.

• Energy Efficient: Built-in photocell ensures the light only turns on at night, significantly reducing electricity consumption.

• Compact Hidden Design: Small enough to be installed inside junction boxes, false ceilings, or existing light fixtures for a clean look.

• Passive IR Technology: High-sensitivity detection that triggers based on body heat movement, minimizing false alarms from wind or sound.

• Wide Load Compatibility: Safely controls LED lights, incandescent bulbs, fluorescent lamps, and small AC fans.

Technical Details

• Sensing Mechanism: Employs a dual-element pyroelectric infrared sensor coupled with a professional Fresnel lens.

• Internal Controller: Uses a dedicated PIR processing IC for noise filtration and stable timing logic.

• Detection Pattern: Features a cone-shaped sensing area with a 110-140 degree wide-angle coverage.

• Load Handling: Optimized for LED loads up to 100W; can handle higher loads of resistive incandescent bulbs (up to 200W).

• Standby Current: Extremely low quiescent power draw (<0.01A), meeting modern eco-design standards.

• Light Control Threshold: Factory-tuned to trigger when ambient light falls below 10 Lux (Twilight/Night).

• Time Delay Reset: If continuous motion is detected while the light is ON, the timer resets, preventing the light from turning off while the room is occupied.

• Dielectric Strength: Internal circuitry is housed in a fire-retardant ABS shell with high-voltage isolation.

• Wiring Interface: Clearly labeled wire leads (typically Red/Brown for Live, Blue for Neutral, and Yellow/White for Load).

• Interference Immunity: Shielded against electromagnetic interference from WiFi routers and cellular signals.

• Installation Height: Optimal sensing range is achieved when mounted at a height of 2 to 3.5 meters.

• Environmental Stability: Maintained accuracy across varying humidity levels and indoor temperature fluctuations.

• Mechanical Life: Solid-state switching design (Triac or Relay based) ensures thousands of trouble-free cycles.

• Safety Standards: Features internal over-current protection to protect the sensor from load surges.

• Fast Start-up: Initial power-on "self-check" period of approximately 10-60 seconds before entering normal sensing mode.