LRF‑18 1535nm Class 1 Eyesafe Laser Rangefinder Module Max 18km Heavy‑Duty 3800g OEM Custom Interface
1. Introduction
LRF-18 is a housing-free eye-safe long-distance laser rangefinder bare module. It features low power consumption, ultra-long measuring range, long service life and wide temperature adaptability. Equipped with comprehensive interfaces, it can be seamlessly integrated into various host systems. Matching PC control software and complete communication protocols are provided, applicable for handheld devices, UAV payloads and multi-function optoelectronic systems.
2. Product Features
- Single-shot ranging and continuous ranging working modes
- Multi-target detection with front-rear target indication, up to 5 identifiable targets
- Built-in self-checking function
- Wake-up trigger function
- Long service life: MNBF emitted pulses ≥1*10⁶ times
3. Performance Curve

4. Technical Specifications
| Parameters | Unit | Comments | |
|---|---|---|---|
| Safety Class | - | Class 1 | Eye safe |
| Wavelength | nm | 1535±5 | — |
| Max Measuring Range | m | ≥18000 | Target of 3mx3m, visibility of 26km |
| Min Measuring Range | m | ≤50 | — |
| Range Accuracy | m | ±2 | Affected by weather conditions and target reflectivity |
| Measuring Rate | Hz | 0.5-10 | — |
| Multiple Targets | - | 5 | — |
| Precision | % | ≥98% | — |
| False Alarm Rate | % | ≤1% | Probability of occurrence of noise |
| Dimensions | mm | 125x100x70 | LxWxH |
| Weight | g | ≤3800 | — |
| Data Interface | - | J30J | Other interfaces can be customized |
| Power Supply | V | 12 | — |
| Peak Power Consumption | W | 3 | Max power consumption when start up |
| Standby Power Consumption | W | 1.2 | Function to be shut down by external signal can be customized |
| Vibration | - | 5Hz, 2.5g | — |
| Shock | - | Axial 100g, 1ms | Can be increased based on user’s application scenarios |
| Operation Temperature | ℃ | -40 +65 | — |
| Storage Temperature | ℃ | -55 +70 | — |
5. Application Scenarios
- Handheld ranging devices
- UAV payload integration
- Optoelectronic monitoring systems
- Field surveying & mapping
6. Dimensions

7. FAQs
Q1: Is the laser source eye-safe?
A: Yes, it adopts Class 1 eye-safe 1535nm laser.
Q2: What is the maximum detection range of LRF-18?
A: Max measuring range ≥18000 m under condition of 3 m*3 m target and 26 km visibility.
Q3: What standard data interface does this module use?
A: Standard J30J interface; other custom interfaces are supported.
Q4: What environmental resistance does it have?
A: Operating temperature -40℃ ~ +65℃, with standard vibration and axial shock resistance performance.
1.Class 1 eye-safe 1535nm laser source, maximum measuring distance up to 18000m. 2.Long-range bare-module design, rich reserved interfaces for easy system embedding. 3.Supports single / continuous ranging, multi-target detection, self-check and wake-up trigger function. 4.Wide o