1. Introduction
Thank you for choosing the treewell 180-Degree Replacement Motion Sensor. This device is designed to enhance the functionality of your existing light fixtures by adding advanced motion detection capabilities. Please read this manual thoroughly before installation and operation to ensure proper use and maximum performance.
2. Product Overview
The treewell motion sensor is a versatile and adjustable unit, perfect for upgrading security floodlights or other outdoor/indoor lighting. It features a wide detection range and multiple operating modes to suit various needs.

Image: Front view of the treewell 180-Degree Replacement Motion Sensor, showing the main body, adjustable neck, and wiring.
3. Key Features
- 180-Degree Detection Range: Covers a wide area for comprehensive motion sensing.
- Up to 60 Feet Sensing Distance: Detects motion from a significant distance.
- Adjustable Time & Sensitivity: Customize delay time (10s to 10 mins) and detection sensitivity (10ft to 60ft).
- 3 Working Modes: Auto Mode, Dusk-to-Dawn Mode, and Manual Override Mode for flexible operation.
- Rotatable Sensor Head: 180 degrees vertically and 300 degrees horizontally adjustable for precise aiming.
- Weather Resistant: Designed for outdoor use with a working temperature range of -30℃ to 50℃.
- UL Listed: Ensures safety and quality standards.
- Compatibility: Supports Max. 500W Incandescent Lamps and Max. 200W LED DRIVER/LED Bulbs.
4. Package Contents
Please check the package to ensure all components are present:
- treewell 180-Degree Replacement Motion Sensor (1 unit)
- Wire Nuts (included for installation)
- User Manual (this document)
5. Setup and Installation
Before beginning installation, ensure the power supply to the light fixture is turned off at the circuit breaker to prevent electrical shock.
5.1 Wiring Diagram
The motion sensor is designed for easy integration with existing light fixtures. Follow the wiring instructions carefully.

Image: Diagram illustrating the wiring connections for the motion sensor to a light fixture. It shows black, yellow, and white wires from the sensor connecting to corresponding wires of the fixture, with a green/bare wire for ground.
- Connect the Black wire from the motion sensor to the Black (Live) wire of your light fixture.
- Connect the White wire from the motion sensor to the White (Neutral) wire of your light fixture.
- Connect the Yellow wire from the motion sensor to the Black (Load) wire of the light fixture.
- Ensure all connections are secure using the provided wire nuts.
- Connect the ground wire (green or bare copper) from the fixture to the electrical box ground.
5.2 Mounting the Sensor
The sensor features a rotatable head for optimal positioning.

Image: Diagram showing the dimensions of the motion sensor and its adjustable neck, indicating 300-degree horizontal and 180-degree vertical rotation capabilities.
- Mount the sensor to your light fixture or desired location using the threaded pipe and nut.
- Adjust the sensor head vertically (180 degrees) and horizontally (300 degrees) to cover the desired detection area.
- Ensure the sensor is positioned to avoid obstructions that might block its detection path.
6. Operating Modes and Adjustments
The treewell motion sensor offers three distinct operating modes and adjustable settings for time and sensitivity.
6.1 Working Modes

Image: Visual representation of the three working modes: Auto Mode, Dusk-to-Dawn Mode, and Manual Override Mode, with descriptions for each.
- Auto Mode (Motion-Sensing Mode):
When movement is detected in darkness, the connected light will turn on. The light will turn off after a preselected time delay (adjustable from 10 seconds to 10 minutes).
- Dusk-to-Dawn Mode (D2D Mode):
The light automatically turns on at night and stays off during daytime. This mode works only at night and does not require motion detection.
- Manual Override Mode (Wall Switch Mode):
To activate, turn the wall switch OFF and then ON within 2 seconds. The light will remain on for 8 hours, then automatically turn off at dawn. To return to Auto Mode, turn the wall switch OFF for more than 2 seconds and then ON.
6.2 Adjusting Time and Sensitivity

Image: Close-up view of the motion sensor's control knobs, labeled "TIMER" and "SENSITIVITY", showing their adjustable ranges and settings like "D2D", "Test", "10 Min", "1 Min", "5 Min", "MAX", "50 Ft", "10 Ft", "20 Ft".
- TIMER Knob: Adjusts the duration the light stays on after motion is detected.
- Rotate clockwise for longer durations (from 10 seconds to 10 minutes).
- Set to "Test" for initial setup and aiming. In Test mode, the light will turn on for a few seconds each time motion is detected, regardless of ambient light.
- Set to "D2D" for Dusk-to-Dawn operation.
- SENSITIVITY Knob: Adjusts the detection range of the sensor.
- Rotate clockwise to increase sensitivity and detection range (up to 60 feet).
- Rotate counter-clockwise to decrease sensitivity and detection range (down to 10 feet).

Image: Illustration demonstrating the 180-degree sensing angle and maximum 60-foot detection range of the PIR motion sensor, with a dog running in the detection area.
7. Maintenance
The treewell motion sensor requires minimal maintenance.
- Cleaning: Periodically wipe the sensor lens with a soft, damp cloth to remove dust or dirt that may obstruct detection. Do not use abrasive cleaners.
- Inspection: Regularly check the wiring and mounting for any signs of wear or damage.
- Weather Resistance: The sensor is designed to be weather resistant (Working Temp -30℃ to 50℃). Ensure it is properly sealed if exposed to direct elements.

Image: Depiction of the motion sensor in rainy conditions, highlighting its weather-resistant design and specified working temperature range of -30°C to 50°C.
8. Troubleshooting
If you encounter issues with your motion sensor, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on with motion. |
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| Light stays on continuously. |
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| Light turns on randomly. |
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| Light turns off too quickly or too slowly. |
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9. Specifications
| Attribute | Detail |
|---|---|
| Model Number | TMD180B |
| Input Voltage | 120 Volts |
| Frequency | 60 Hz |
| Detection Angle | 180 Degrees |
| Maximum Range | 60 Feet |
| Adjustable Time Delay | 10 seconds to 10 minutes |
| Load Rating (Incandescent) | Max. 500W |
| Load Rating (LED/LED Driver) | Max. 200W |
| Material | Housing: PC; Lens: PE |
| Working Temperature | -30℃ to 50℃ |
| Certification | UL Listed |
| Dimensions | 4.53 x 3.15 x 2.56 inches |
| Item Weight | 5 ounces |
10. Warranty and Support
treewell provides a 2-year warranty for this product, covering defects in materials and workmanship from the date of purchase.
For technical support, warranty claims, or any questions regarding your treewell motion sensor, please contact our customer service team. We offer 7*24h after-sales service.
For more information, visit the official treewell store on Amazon: treewell Store