Mini Recessed PIR Motion Sensor 20mm for Automatic Lighting 220V

A high-precision smart motion sensor utilizing Passive Infrared (PIR) technology to detect human thermal movement and instantly activate lighting upon entry. Featuring an ultra-compact 20mm cutout diameter, it sits completely flush within gypsum ceilings and cabinetry for a seamless architectural appearance. Operating on a direct 220V power supply with up to 40W load capacity, it offers a practical and cost-effective solution for hallway and space automation without complex equipment or software.

Product Features:

• Advanced thermal PIR sensing technology for precise body movement detection.
• Ultra-compact 20mm cutout design for flush-mount interior integration.
• Direct 220V AC wiring without requiring external power adapters.
• Adjustable delay time and ambient light sensitivity controls via built-in trimmers.
• Safe load handling up to 40W for maximum operational energy efficiency.

💡 Technology (Simply Explained):

The sensor operates via a pyroelectric core encased in an integrated Fresnel lens that segments the detection area. As a person moves through the field, variations in thermal radiation are converted into an instant electrical signal, closing the circuit to trigger the connected lighting silently and accurately without being affected by airflow or ambient noise.

Orientation & Coverage:

Sensing distance and response are governed by installation height and angle. Ceiling installations at 2.2m to 3m heights yield a 110-degree conical coverage with up to 5 meters ground diameter. Lateral wall or partition mounting tracks perpendicular movement effectively upon entering corridors, provided the lens avoids direct alignment with thermal sources or AC vents to prevent false triggers.

Compatibility:

Engineered for low-power illumination systems including LED downlights, 220V direct COB strip lights, and integrated ceiling fixtures. Fits seamlessly into concealed architectural lighting schemes and cabinet interiors without electrical interference.

Load & Power Limits:

Supports a nominal resistive load up to 40W at direct 220V AC. To ensure long-term reliability, do not exceed this operational limit; direct connection to heavy loads such as motors or transformers is strictly prohibited. Connecting higher loads requires an external contactor or relay switch.

Practical Applications & Use Cases:

Ideal for narrow hallways, entry foyers, hotel corridors, restrooms, and built-in wardrobes. Provides automated hands-free illumination at night, turning on ambient lighting upon entry and shutting off automatically after occupants exit.

Automation & Logic Sequences:

Enables standalone hardware-level automation without Wi-Fi or software controllers. Pairing the sensor output to a multi-channel relay allows simultaneous activation of lighting and ventilation fans upon presence detection, following a timed shutdown sequence after the space is vacated.

Technical Specifications:

• Operating Voltage: 110 - 240V AC (50/60Hz)
• Maximum Load: 40 Watts (40W)
• Sensing Technology: Passive Infrared (PIR)
• Detection Angle: 110 Degrees (Conical / Lateral)
• Sensing Distance: 3 to 5 Meters
• Delay Time: Adjustable (15 seconds to 5 minutes)
• Light Sensitivity (Lux): Adjustable (Night-only or 24/7)

Physical Specifications:

• Cutout Diameter: 20mm
• Outer Depth: 25mm
• Enclosure Material: Flame-retardant ABS plastic
• Color: Pure White
• Ingress Protection: IP20 (Indoor dry areas)

Package Contents:

• Mini Recessed PIR Motion Sensor 20mm 220V.
• Wiring and installation instruction guide.

Keywords:

Motion Sensor, Mini PIR Sensor, Recessed Sensor, Automatic Lighting, 20mm Ceiling Sensor, Hallway Automation, Abhir

Complete Your Setup (Frequently Bought Together):

• Integrated 5W 220V LED Downlight.
• Direct 220V COB LED Strip.
• Quick-connect wire terminal block.

Helpful Resources & Videos:

• Guide on adjusting delay time and ambient light sensors.
• Direct 220V wiring topology and relay connection diagram.

Frequently Asked Questions (FAQs):

Does this sensor require a low-voltage power supply?

No, it connects directly to 220V AC mains voltage, eliminating the need for separate transformers.

What happens if I connect a load higher than 40W?

Connecting loads above 40W overloads the internal relay switch and causes permanent hardware damage. Use an external contactor for higher loads.

Can it be set to work only at night?

Yes, the ambient light trimmer allows configuration to activate exclusively during low ambient light or continuously 24/7.

🔄 Cancellations, Returns & Exchanges

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Installation & Wiring:

1. Cut a clean 20mm circular opening in the gypsum ceiling or partition board.
2. Connect the Input leads to the 220V mains supply (Line and Neutral).
3. Connect the Output leads to the light fixture load wires.
4. Adjust the built-in trimmers for desired time delay and light sensitivity threshold.
5. Push the sensor body flush into the cutout until securely seated.

⚠️ Safety Precautions:

1. Disconnect main power prior to installation, wiring, or maintenance.
2. Ensure connected lighting load does not exceed the maximum 40W threshold.
3. Indoor use only; avoid wet or high-humidity environments (IP20 rated).
4. Secure all terminal connections with proper insulation accessories.