905nm Laser Rangefinder Module 200m SFA200AH

The SFA200AH Micro Laser Rangefinder is an advanced electro-optical device designed for precision distance measurement using time-of-flight laser technology. Compact, lightweight (≤50g), and built for reliability, it delivers high-speed, accurate ranging data ideal for integration into modern robotic, UAV, industrial automation, and mapping systems. With dual communication options (3.3V TTL or RS422) and wide voltage input support (9–36V), the SFA200AH offers flexibility and performance in a miniature package.

Key Product Highlights

  • Ultra-Compact & Lightweight:​​ Weighing only 50g with a minimal footprint, it integrates easily into space-constrained setups.
  • Wide Measuring Range:​​ Capable of measuring distances from 0.05m up to 200m, depending on target reflectivity and environmental conditions.
  • High-Frequency Operation:​​ Adjustable acquisition frequency from 1–20 kHz, with an output frequency ≥100 Hz, ensuring real-time data for dynamic applications.
  • Robust Environmental Durability:​​ Operates reliably in temperatures from -40°C to +65°C, suitable for outdoor and harsh industrial environments.
  • High Accuracy:​​ Offers precision within ±0.05m (for distances ≤10m) and 0.1m (beyond 10m), supporting high-precision tasks.

Main Functions & Features

  • Adaptive Frequency Output:​​ The output frequency adjusts automatically based on target reflectivity, optimizing performance under varying conditions.
  • Dual Communication Interfaces:​​ Supports 3.3V TTL or RS422 serial communication, with configurable baud rates up to 921600 bps.
  • Low Power Consumption:​​ Consumes under 2W during operation, ideal for battery-powered systems.
  • Eye-Safe Laser wavelength:​​ 905nm ±10nm laser ensures safety compliance and stable performance.

Typical Applications

This micro laser rangefinder is widely used in:

  • UAVs & drones for obstacle avoidance and terrain mapping
  • Robotics for navigation and object detection
  • Industrial automation and positioning systems
  • Intelligent transportation and vehicle assistance systems
  • Surveying equipment and precision measurement tools

Technical Specifications Table

ParameterSpecification
Wavelength905nm ± 10nm @ 25°C
Acquisition FrequencyAdjustable from 1 to 20 KHz
Output Frequency≥ 100 Hz (The actual output frequency adapts based on target reflectivity, falling below the acquisition frequency for low-reflectivity targets)
Maximum Range≥ 200m (Target Reflectivity ≥ 50%, Visibility ≥ 5 km, Relative Humidity ≤ 60%)
≥ 120m (Target Reflectivity ≥ 10%, Visibility ≥ 5 km, Relative Humidity ≤ 60%)
Minimum Range≤ 0.05m
Ranging Accuracy≤ ± 0.05m (for distances ≤ 10m)
≤ 0.1m (for distances > 10m)
Operating Temperature-40°C to +65°C
Storage Temperature-50°C to +85°C
Ranging Capability​Under conditions of visibility ≥ 5 km and relative humidity ≤ 60%, the laser rangefinder shall achieve a maximum range of over 200 meters with an accuracy rate greater than 98%.