905nm Laser Rangefinder Module 1200m (for UAV & Industrial Application) SFA1200AJ

Core Selling Points

Exceptional Long-Range & Short-Range Measurement: To begin with, this module delivers a maximum ranging distance of ≥1200m on 70% reflectivity building targets. At the same time, it also supports a minimum ranging distance of 5m on 90% reflectivity white targets. As a result, it offers remarkable versatility for both long-range surveying and close-range detection applications.

High-Precision Ranging with Low Error Rate: Furthermore, the module achieves measurement accuracy of ±0.7m for distances ≤100m and ±(0.7 + 0.004 × d)m for distances >100m. In addition, it maintains a measurement success rate ≥98% and a false alarm rate ≤1%. Consequently, it ensures reliable data for critical decision-making.

Class 1 Eye-Safe Laser: For safety assurance, the module operates at a 905nm wavelength and holds Class 1 (IEC 60825-1) laser classification. Therefore, it poses no risk of eye injury and is safe for integration into a wide range of civilian applications.

Ultra-Low Power Consumption: Moreover, the module features standby power consumption ≤1mW (with the enable pin pulled high) and normal operating power consumption ≤1.5W@25°C. As a result, it significantly extends operational time for battery-powered systems and portable devices.

Flexible Measurement Modes & Frequencies: The module also supports both single ranging and continuous ranging modes with customizable measurement intervals. Specifically, it offers a continuous measurement frequency of 3Hz when measuring the same target and 2Hz when switching between different targets. Hence, it adapts seamlessly to diverse testing requirements, from static surveying to dynamic target tracking.

Compact, Lightweight & Rugged Design: Additionally, this ultra-compact module measures just Ø23mm × 40mm and weighs only 22±0.5g. Consequently, it balances portability with durability exceptionally well. It also features IP67 ingress protection, shock resistance of 1000g/ms, and vibration resistance of 5–50–5Hz at 2.5g. Therefore, engineers have built it to withstand even the most demanding environments.

Wide Temperature Adaptability: Furthermore, the module operates reliably from -20°C to +60°C and stores safely from -25°C to +75°C. As a result, it maintains stable performance across diverse environmental conditions, from cold outdoor settings to demanding industrial applications.

Standard Serial Communication & Easy Integration: For seamless connectivity, the module adopts a UART-TTL (3.3V) interface with a default baud rate of 115200 bps. Moreover, it supports multiple baud rate configurations, including 9600, 14400, 19200, 38400, 56000, 57600, 115200, 128000, and 230400 bps. This flexibility greatly facilitates embedded system integration and secondary development.

Comprehensive Development Support: Finally, we provide dedicated test software and a complete communication protocol. These tools support power-on self-test and LD continuous-on mode debugging. Together, they significantly reduce development complexity and accelerate time-to-market.

Functions

Single & Continuous Ranging: To begin with, the module supports both single-shot measurement and continuous ranging modes with customizable intervals. As a result, it enables flexible operation for static target surveying or real-time dynamic monitoring.

Power-On Self-Test: Additionally, the module features built-in self-test functionality that verifies system status upon power-up. Specifically, STA=1 indicates successful initialization, while ErrCode reports failure diagnosis. Consequently, this ensures reliable operation before each use.

Low-Power Mode Control: Moreover, the enable pin (Pin 6) allows dynamic power state switching. Users can pull it low for normal operation or pull it high to enter low-power mode with consumption ≤1mW. Therefore, it proves ideal for power-sensitive embedded applications.

Configurable Baud Rate: Furthermore, the module supports nine baud rate settings (9600 to 230400 bps) via serial commands. These new settings take effect after device restart, providing excellent flexibility for integration with diverse host systems.

LD Continuous-On Mode: For development personnel, we have included a dedicated debugging mode that enables laser diode continuous operation for testing and alignment purposes. However, please note that users should not use this mode for extended periods.

Robust Communication Protocol: Finally, the module employs an 8-byte data frame format with header (55 AA), function code, data bytes, and checksum for reliable data transmission. All data transmits in hexadecimal format, with measurement values scaled by 10× to ensure data integrity.

Application Areas

Aviation & UAV Payloads: To begin with, this module proves ideal for drone altimetry, terrain following, obstacle avoidance, and airborne surveying. Specifically, it leverages its lightweight design (22g) and long-range capability to deliver exceptional performance for unmanned aerial systems.

Security & Surveillance: Additionally, security professionals can rely on this module to enhance perimeter protection, law enforcement operations, border monitoring, and security systems. With its reliable long-distance target detection, it provides critical support for public safety missions.

Industrial & Engineering Surveying: Moreover, surveyors and engineers can apply this module to construction surveying, civil engineering, infrastructure monitoring, and geological applications. Thanks to its high-precision distance measurement, it ensures accurate data for demanding projects.

Outdoor Sports & Hunting: Furthermore, outdoor enthusiasts benefit greatly from this module in golf rangefinders, hunting optics, outdoor navigation, and sports equipment integration. Its compact size, lightweight build, and eye-safe operation make it a perfect companion for field activities.

Communications & Telecommunications: Additionally, telecom engineers use this module to assist in tower positioning, cable sag measurement, and infrastructure installation. With its accurate distance data, it streamlines critical telecommunications tasks.

Robotics & Automation: Finally, robotics engineers and automation specialists can integrate this module into robotic platforms, AGVs, and automated systems. Specifically, it enables obstacle detection, navigation, and positioning, thereby enhancing the intelligence and safety of automated operations.