LDL-P4 High Resolution Laser Distance Sensor
Overview:
The LDL-P4 High Resolution Laser Distance Sensor is an advanced laser distance module that builds on the foundation of the LDL series by incorporating a protective enclosure for enhanced durability. This model is designed for precision distance measurement in a wide range of applications, particularly where environmental protection is essential. Whether you’re working in industrial settings or outdoor environments, the LDL-P4 offers superior measurement capabilities, robust performance, and reliable accuracy.

Measurement Principle
The LDL-P4 High Resolution Laser Distance Sensor uses the Indirect Time-of-Flight (iToF) method, specifically the phase-shift laser ranging technique. This method is ideal for short to medium-range measurements and is capable of achieving millimeter-level or even micrometer-level accuracy.
The principle works by modulating the emitted laser at a specific frequency and directing it towards the target object. The reflected laser signal returns to the receiver, and the phase difference between the transmitted and received signal is analyzed. Using the phase difference and modulation frequency, the exact distance is calculated.
Technical Specifications:
Accuracy | ±1mm |
Measurement Units | Meter/Inch/Feet |
Measure Distance | 0.03-5/10/20/40 meters |
Measure Time | 0.3~4 seconds |
Frequency | 3/10/20Hz |
Laser Type | 620nm-690nm, <1mW Red laser |
Laser Class | Class II |
operating Temperature | -10-50 ℃ (32-104 ℉ ) |
Storage Temperature | -25~60 ℃ (-13~140 ℉) |
Interface | UART/RS485/RS232/Bluetooth |
Voltage | DC 2.5~3.3V |
Size | 68.0*42.0*17.4mm |
Weight | 52g |
Applications
The LDL-P4 High Resolution Laser Distance Sensor is engineered for use in environments requiring robust measurement solutions, including:
- Industrial Automation: Ideal for precise distance measurements on production lines, conveyor systems, and robotic arms.
- Construction and Surveying: Used for leveling, distance checks, and aligning structures, especially in outdoor or harsh conditions.
- Agriculture and Forestry: Tree height measurement, field boundary marking, and automated farming equipment guidance.
- Smart Devices: Integrating into consumer electronics like drones, robots, and automated vehicles for precise distance detection.
- Security and Surveillance: Effective for perimeter monitoring and security systems, offering reliable performance in various environmental conditions.
Advantages of the LDL-P4 High Resolution Laser Distance Sensor
- Enhanced Durability: The protective enclosure ensures long-term operation in harsh environments, safeguarding the module against dust, moisture, and mechanical damage.
- Superior Accuracy: Achieve high accuracy even with challenging reflectivity and lighting conditions, making it suitable for precise industrial applications.
- Versatile Use Cases: Can be used in a wide variety of industries, from automation to surveying, thanks to its flexibility and high performance.
- Ease of Integration: Compact and lightweight design (only 15g), making it easy to integrate into both existing systems and new designs.
Customization Services
At Meskernel, we understand that every application has unique requirements. That’s why we offer extensive customization options, including:
- Adjustable range and accuracy
- Configurable baud rates and communication protocols
- Custom temperature ratings and environmental adaptations
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For tailored solutions, please contact us and we can discuss how to best meet your specific needs.