LDJ-4Hz UART Laser Measure Distance Sensor- 120m Range for Industrial Measurement & Drones

High-precision Laser Measure Distance Sensor with ±1mm accuracy, 200m range, and 50Hz sampling. Featuring IP67 protection, multi-interface support (RS232, RS485, Modbus, Ethernet, Bluetooth, USB), and superior environmental resilience for industrial and automation applications.

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120m Laser Measure Distance Sensor, a 1mm precision laser distance measurement module, is a device utilized for measuring target distances and transmitting data. It employs visible laser technology to emit laser beams and receive reflected laser signals to measure the distance between objects and the sensor. The laser ranging sensor supports communication interfaces such as USB, TTL, RS232, RS485, Bluetooth, enabling data transmission and communication with other devices.

Unmatched Performance with Our Laser Distance Sensor

✅ Millimeter-Level Accuracy – This Laser Measure Distance Sensor provides ±1mm precision over a 0.03m to 200m range, delivering industrial-grade repeatability for robotics, automation, and surveying.

✅ 6-in-1 Communication Interface for Seamless Integration – Fully supports RS232, RS485, Modbus, Ethernet, Bluetooth, and USB, making it easy to integrate into PLC systems, industrial IoT (IIoT) networks, and automation platforms.

✅ Built to Withstand Harsh Environments – With an IP67 waterproof and dustproof rating, this Laser Measure Distance Sensor is resistant to dust, water, and vibrations, operating reliably from -20°C to 60°C, ideal for industrial and outdoor applications.

✅ High-Speed 50Hz Sampling Rate – Features real-time distance measurement with a 20ms response time, ensuring accurate data acquisition for drones (UAVs), AGVs (automated guided vehicles), robotic navigation, and precision manufacturing.

Applications of the Laser Distance Sensor in Key Industries

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🏗 Laser  Distance Sensor for Construction & Surveying

  • BIM-based real-time site measurement
  • Steel structure deviation detection with ±0.5mm accuracy

🚁 Laser Distance Sensor for Drones & UAVs

  • Precise altitude control for drone flight stability
  • Obstacle detection and avoidance in power line inspections

🏭 Laser Distance Sensor for Industrial Automation

  • AGV navigation & warehouse logistics optimization
  • Material volume measurement on conveyor belts

🔬 Laser Measure Distance Sensor for Scientific Research & Monitoring

  • Structural health monitoring (bridges, tunnels, and dams)
  • Glacier movement tracking and environmental research

Key Advantages of Our Laser Measure Distance Sensor

💧 Water Surface Penetration Technology

  • The 532nm wavelength optimization algorithm enables accurate water depth measurement up to 3m, significantly outperforming standard sensors (0.5m).
  • Ideal for hydrology, aquaculture, and underwater mapping applications.

🌞 Superior Anti-Light Interference

  • The advanced ambient light filtering technology ensures ±2mm accuracy even under 100,0 lux sunlight, outperforming industry competitors (±5mm accuracy).

📶 Intelligent Protocol Conversion for Industrial IoT

  • The built-in Modbus-TCP gateway allows direct IIoT integration without additional hardware.
  • OPC UA and MQTT support (coming soon) for enhanced smart factory automation.

Trusted by Industry Leaders – Proven Laser Measure Distance Sensor

🔹 300+ Industrial Clients – Integrated with ABB robotic arms, DJI M300 drones, and Siemens PLC systems.
🔹 500,000+ Operational Hours – With a failure rate below 0.2%, ensuring long-term reliability for industrial applications.


Why Choose Our Laser Measure Distance Sensor?

This high-precision, industrial-grade Laser Measuring Distance Sensor is engineered for automation, robotics, UAV navigation, and industrial monitoring, offering exceptional accuracy, durability, and seamless system integration.

For OEM/ODM customization and bulk orders, contact us today!

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Parameters

ModelLDJ 
Distance0.03~100/150/200m
Frequency3~20Hz
Accuracy±(3mm+D*(1/10000))
Demension64x40x18mm
Weight14±1.4g
Laser Type610~690nm.<1mW
Laser ClassClass I
Working Temperature0~40℃
Power Consumption<160mA@3.3V
InterfaceTTL/RS485/RS232

Structure Chart

High Accuracy Phase Laser Distance Module

FAQ

Q1. Are you trading company or manufacture?

A1:We are original manufacturer locates in Shuangliu District Chengdu. Our company was established in 2004 with more than 125 national patents and own brands, Welcome to visit us.

Q2. What is your main product?

A2:Our company has mainly focused on the field of laser measurement and control, Laser Ranging Module, Laser Distance Sensor, Laser Rangefinder Module as long as Laser Distance Meter, Laser Rang Finder and 2D 3D LiDAR.

Q3. What’s the warranty of your products?

A3:We provide 12 months of Factory Warranty for all our products since shipping date.

Q4. Can you offer customized service?

A4:Sure we can provide clients OEM and ODM products and solutions. For products function data like Distance, Precision, Frequency, interface of Bluetooth, Communication Protocol RS485, RS232, USB, TTL, we all provide ODM even the programming.

Q5. Can I have a sample for testing?

A5: Yes, we can provide 1-2 pcs samples for clients testing for its programming compatibility and stability.but clients will firstly pay the sample cost and shipping cost.

Q6. How much does it cost to ship to my country?

A6: You can send us your shipping address and we can calculate the shipping cost.

Q7. What is your payment method?

A7: T/T, Paypal, Western Union, L/C is available.

Q8. What is the packing method, dose it suit for long distance shipping?
A8: Due to its international shipment,we treat the packages very well and strengthen packed.The products will firstly wraps with film and then insert to the grooved plastic foam board.
Q9. Can I be your distributor or agent?
A9:Yes, you are welcome to be our agent or distributors, we have some policy for the management of our agent or distributors.

Main Application Cases

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