1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the Lazmin Black PIR Motion Sensor Switch. This device is designed to automatically control lighting based on detected human movement, enhancing convenience and safety in various indoor and outdoor environments.
The sensor is suitable for use with lighting systems and is rated for AC 110-240V power supply. Its IP65 waterproof rating makes it suitable for outdoor applications.
2. Safety Information
WARNING: Risk of Electric Shock. Installation should only be performed by a qualified electrician or trained personnel.
- Always disconnect power at the circuit breaker before installing or servicing the device.
- Ensure all wiring connections are secure and comply with local electrical codes.
- Do not exceed the maximum rated load of 100W.
- Do not attempt to modify or disassemble the sensor.
- Keep the device away from flammable materials.
- Ensure the installation location is stable and can support the device.
3. Package Contents
The package includes the following items:
- 1 x Lazmin Black PIR Motion Sensor Switch

Image 1: Lazmin Black PIR Motion Sensor Switch. This image shows the compact black sensor unit with its white, domed PIR lens and attached wiring (red, blue, brown wires) extending from the top, secured by a nut.
4. Specifications
| Feature | Specification |
|---|---|
| Model | Lazminqhu7ey6msn |
| Brand | Lazmin |
| Color | Black |
| Material | PC |
| Power Supply | AC 110-240V |
| Power Frequency | 50/60Hz |
| Rated Load | Up to 100W |
| Waterproof Rating | IP65 (Outdoor Use) |
| Detection Range | 120-140 degrees |
| Sensing Range | 3-12 meters |
| Installation Height | 1.8-2.5 meters |
| Adjustable Delay Time | 10 seconds ± 3 seconds to 15 minutes ± 2 minutes |
| Adjustable Ambient Light | <3 to 2000 LUX |
| Product Dimensions (L x W x H) | 62 x 49.7 x 21.7 mm (approx. 2.44" x 1.96" x 0.85") |
| Line Length | 91 mm |
| Item Weight | 0.06 kg (approx. 2.11 oz) |

Image 2: Dimensions of the Lazmin Motion Sensor. This diagram illustrates the length, width, and height of the sensor unit in millimeters, indicating key measurement points.
5. Setup & Installation
5.1 Installation Location
The sensor can be installed using plane installation, internal corner mounting, or outer corner mounting. For optimal performance, consider the following:
- Installation Height: Mount the sensor between 1.8 to 2.5 meters from the ground.
- Detection Area: Position the sensor to cover the desired detection area (120-140 degrees, 3-12 meters range). Avoid aiming directly at heat sources or areas with rapid temperature changes, which may cause false triggers.
- Obstructions: Ensure there are no obstructions that could block the sensor's field of view.

Image 3: Schematic diagram illustrating the motion sensor's detection range and how it activates lighting upon detecting movement. The diagram shows the sensor's 120-degree detection angle and how it illuminates an area when a person enters its field.
5.2 Wiring Instructions
IMPORTANT: Disconnect power at the circuit breaker before proceeding with wiring.
The sensor has three wires for connection:
- Brown Wire (L): Connect to the Live (Phase) wire of the AC power supply.
- Blue Wire (N): Connect to the Neutral wire of the AC power supply.
- Red Wire (L1): Connect to the Live (Phase) input of the light fixture.
The Neutral wire from the AC power supply should also be connected directly to the Neutral input of the light fixture.

Image 4: Detailed wiring diagram for the motion sensor. This diagram illustrates how to connect the sensor's brown (Live), blue (Neutral), and red (Load) wires to the AC power supply and a light fixture. It shows the power input, the sensor, and the light bulb, with clear labels for Live (L), Neutral (N), and Load (L1) connections.
6. Operation
The Lazmin PIR Motion Sensor Switch automatically detects human movement and activates connected lighting. The sensor features adjustable settings for delay time and ambient light sensitivity.
6.1 Adjusting Delay Time
The delay time determines how long the light remains on after motion is no longer detected. This setting is adjustable from 10 seconds (±3 seconds) to 15 minutes (±2 minutes). Refer to the sensor unit for the adjustment dial or switch, typically labeled "TIME".
6.2 Adjusting Ambient Light Sensitivity (LUX)
The ambient light sensitivity (LUX) setting determines the light level at which the sensor will activate. For example, setting it to a low LUX value means the sensor will only activate in dark conditions, while a high LUX value allows it to activate in brighter conditions. This setting is adjustable from <3 LUX (darkness) to 2000 LUX (daylight). Refer to the sensor unit for the adjustment dial or switch, typically labeled "LUX".
- To operate only at night: Set the LUX control to the minimum (moon symbol).
- To operate during both day and night: Set the LUX control to the maximum (sun symbol).

Image 5: Illustration of the motion sensor detecting movement and activating lighting. This image depicts a person walking into the sensor's detection zone, causing the connected light to turn on, emphasizing its function for safety and convenience.
7. Maintenance
The Lazmin PIR Motion Sensor Switch requires minimal maintenance.
- Cleaning: Periodically wipe the sensor lens with a soft, dry cloth to remove dust or dirt that may affect performance. Do not use abrasive cleaners or solvents.
- Inspection: Regularly inspect the wiring and mounting for any signs of damage or loosening.
- Environmental Factors: Ensure the sensor is not exposed to extreme temperatures or direct water jets beyond its IP65 rating.
8. Troubleshooting
If the motion sensor is not functioning as expected, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on when motion is detected. |
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| Light stays on continuously. |
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| Light turns on randomly (false triggers). |
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