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905nm Laser Rangefinder Module 2.5km SF-DYA2501A

The SF-DYA2501A Micro Laser Rangefinder is a high-performance, ultra-compact distance measurement solution designed for precision and reliability. Operating at 905nm wavelength, it delivers a range of up to 2,500m with ±2m accuracy, ideal for integration into drones, robotics, security systems, and industrial automation. Featuring low power consumption, lightweight design (62g), and versatile modes (single/continuous measurement), this rugged module ensures seamless performance in demanding environments. Its TTL serial interface enables easy integration, while advanced safety protocols protect against overexposure and environmental hazards.

Key Selling Points

  • Ultra-Compact & Lightweight (50.5×49.5x29mm, 62g) for easy integration.
  • High Accuracy (±2m) and long-range capability (2,500m).
  • Multi-Mode Operation: Single-shot, 1Hz/2Hz continuous modes.
  • Low Power Consumption (<0.8W) for extended use.
  • Robust Design: Resists vibration, humidity, and temperature fluctuations.
  • Laser Safety Compliance: Class 1 laser product (eye-safe under normal use).

Functions & Features

  • Real-time distance measurement with TTL output.
  • Built-in self-diagnostic system for reliability checks.
  • Anti-interference technology for stable performance.

Applications

  • Drone navigation & obstacle avoidance.
  • Industrial automation & robotics.
  • Security surveillance & perimeter monitoring.
  • Surveying, forestry, and construction.

Specifications

Operating Wavelength 905nm ±10nm
Transmitter Aperture Φ18.6mm
Receiver Aperture Φ24.2mm
Baud Rate 57600bps
Ranging Capacity ≥2500m (large targets)
Blind Zone ≤15m
Accuracy ±2m (optional ±1m)
Detection Rate ≥98%
False Alarm Rate ≤2%
Ranging Frequency Single-shot, 1Hz, 2Hz
Weight ≤62g
Dimensions ≤50.5mm × 49.5mm × 29mm
Electrical Connector Socket: DF52-8S-0.8H;

Plug:DF52-8P-0.8C

Supply Voltage 4.5V ~ 5.5V
Standby Power Consumption ≤0.8W
Average Power Consumption ≤0.8W

Note:The nominal distance and accuracy are achieved under the conditions of visibility no less than 8 kilometers and relative humidity no more than 60%.


Electrical Interface

The host device connects to the rangefinder via a ​DF52-8P-0.8C (8PIN)connector, which interfaces with the ​DF52-8S-0.8H (8PIN) connector on the rangefinder for interconnection testing. The pin definitions for the rangefinder’s power supply and communication ports are listed in the following table, and the position of Pin 1 on the connector is shown in the following  figure.

Table : Rangefinder Power and Communication Port Pin Definitions

Pin Number Label Electrical Definition Signal Direction
P-1
P-2
VIN+ Positive Power Input Power Supply to Rangefinder
P-3
P-4
VIN- Negative Power Input Power Supply to Rangefinder
P-5 NC
P-6 GND Ground Wire Ground Wire
P-7 UART_TXD Signal Output Port Rangefinder to Host Device
P-8 UART_RXD Signal Input Port Host Device to Rangefinder

Compliance

  • CE, RoHS, and IEC 60825-1 (Laser Safety) certified.

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