The LDL 40 meter RS232 Laser Distance Sensor is designed for high-precision, mid-range non-contact measurement in compact and embedded systems. With RS232 interface, millimeter-level accuracy, and support for continuous and single-shot measurements, it’s the perfect choice for developers and engineers requiring stable serial communication in harsh environments.
Whether you’re integrating it into industrial automation, smart logistics, AGVs, or distance control systems, this module provides reliable, real-time data with minimal footprint and low power consumption.
⚙️ Key Features of LDL RS232 Laser Distance Sensor
✅ Measurement Range: 0.03m to 40m
🎯 Accuracy: ±(3mm + D×1/10000)
📏 Resolution: 1mm
🔄 Output Frequency: 3Hz / 20Hz (selectable)
💡 Laser Type: Class II, <1mW, 610–690nm
🔌 Interface: RS232 (via external USB-to-RS232 converter), supports TTL level
⚡ Power Supply: 2.5V–3.6V (typical: 3.3V or 4.0V depending on version)
📦 Size: 42mm × 17.1mm × 7.06mm | Weight: 4g
🔁 Continuous / Single Measurement Modes
🔗 Multiple Baud Rates: 9600 – 115200bps (fixed or auto detection)
Why Choose an RS232 Laser Distance Sensor?
Using an RS232 interface allows seamless integration with industrial PCs, PLC systems, or legacy embedded controllers where longer cable distances and noise resistance are required. Compared to TTL or USB, RS232 offers:
Robust signal over longer distances
Broad compatibility with data acquisition equipment
No need for USB drivers or complex stack initialization
Stable performance in high-EMI environments
🧩 Typical Applications
🏭 Industrial automation: object detection, conveyor belt measurement
🤖 AGVs / AMRs: obstacle detection and path guidance
📐 Smart logistics: cargo dimensioning, position tracking
🧪 Measurement and control systems: real-time monitoring with RS232 host devices
🔬 OEM / ODM integrations: customizable, low-profile laser module for embedded design
📦 Product Variants & Compatibility
| Model | Interface | Output Rate | Integration Style |
|---|---|---|---|
| LDL-RS232 | RS232 | 3Hz / 20Hz | UART-to-RS232 adapter |
| LDL-USB | USB | 3Hz / 20Hz | Plug-and-play |
| LDL-I2C | I2C | 3Hz | Multi-sensor systems |
🔄 Easy Integration
The LDL RS232 laser distance sensor supports both automatic and fixed baud rate protocols, and includes offset correction, multi-module networking (up to 127 devices), and command control via standard ASCII/HEX instructions.
Optional software tools are available to:
Change module address
Visualize real-time distance in charts
Adjust offsets and modes
Perform quick test and diagnostics
🔍 Technical Details
Reflectivity Range: 0.2 – 1.0
Operating Temp: 0–40°C (extended range customizable)
Storage Temp: –25 to +60°C
Laser Spot Size: <8mm@10m; <40mm@40m
Measurement Time: 0.3 – 4s depending on reflectivity/light
Signal Quality Index: output included in measurement result
📞 Need Help Choosing the Right Interface?
If you’re unsure whether the RS232 laser distance sensor is best for your application, explore our guide on choosing the right interface for laser distance modules or contact us for technical assistance.
