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905nm Laser Rangefinder Module 1.2km SF-DYA1201A

The SF-DYA1201A Mini Laser Rangefinder is a cutting-edge, ultra-compact device designed for precision distance measurement up to 1,200 meters. Weighing ≤20g and measuring just φ23mm×46mm, it integrates seamlessly into drones, robotics, security systems, and industrial automation. With TTL communication, low power consumption (0.8W max), and high accuracy (±1m + 0.25% of distance), it delivers reliable performance in diverse environments (-20°C to +50°C).

Key Selling Points

  • Ultra-Compact & Lightweight: Ideal for space-constrained applications.
  • High Accuracy: ±(1m + 0.25%×L) precision for critical measurements.
  • Versatile Modes: Single-shot, 1Hz, or 2Hz measurement frequencies.
  • Low Power: 0.6W standby, 0.8W operational.
  • Robust Design: Weather-resistant and durable for harsh conditions.

Applications

  • Drone navigation & obstacle avoidance
  • Robotics and automation
  • Security surveillance
  • Industrial measurement
  • Surveying & mapping

How It Works

  1. Connect via TTL interface (3.3V power supply).
  2. Send commands (single/1Hz/2Hz mode).
  3. Receive real-time distance data.

Specifications

Operating Wavelength 905nm ±5nm
​Measurement Range ≥1,200m (large reflective targets)
​Blind Zone ≤10m
​Accuracy ≤(1 + L × 0.25%)m

Note: L = target distance (meters)

​Measurement Modes Single-shot, 1Hz, 2Hz
​Weight ≤20g
​Dimensions ≤Ø23mm × 46mm
​Power Supply 2.5V–3.5V (Typical: 3.3V)
​Power Consumption Standby: ≤0.6W @3.3V;

Operational: ≤0.8W @3.3V

​Operating Temperature -20°C to +50°C

Note: All performance specifications and interfaces can be customized to meet specific requirements.


Electrical Interface

The electrical interface requirements are as follows:

  • Power Supply Voltage: 2.5V–3.5V (Typical: 3.3V).
  • Standby Power Consumption: ≤0.6W @3.3V.
  • Average Power Consumption: ≤0.8W @3.3V.
  • The host computer connects to the rangefinder via the ​LNN100-157128-200-4P connector (host side) and ​A1002WR-S-4P connector (rangefinder side) for interface testing. Pin definitions are listed in the following Table, and the position of Pin 1 is shown in the following Figure.

Table: Power Supply & Communication Port Pin Definitions for the Laser Rangefinder

Pin No. Label Electrical Definition Signal Direction
P-1 VIN+ Positive power input Power supply
P-2 VIN- Negative power input
P-3 TTL_RXD Signal input port Host computer to rangefinder
P-4 TTL_TXD Signal output port Rangefinder to host computer

Notes:

  • Pin directionality (“Signal Direction”) explicitly defined for integration purposes.
  • Connector models (e.g., LNN100-157128-200-4P) retained as original to ensure compatibility.


Certifications

  • RoHS/CE compliant.

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