NLMA1200 905nm Semiconductor Pulsed Laser Ranging Engine

Integrated OEM Ranging Solution for Long-Range Aerial Infrastructure Surveying

The NLMA1200 represents a professional-grade, high-reliability entry in our series of uav distance sensors, purpose-built for strategic OEM integration in mission-critical platforms. Engineered specifically for weight-critical unmanned systems and compact integration projects, the NLMA1200 905nm pulsed laser ranging core delivers stable long-distance sensing with dependable accuracy.At a lightweight build under 20g, this module brings professional-grade ranging capability to drone navigation, aerial surveying, and compact robotic platforms without compromising payload efficiency. Built with eye-safe laser emission and wide environmental adaptability, it serves as a plug-and-play sensing component for modern autonomous equipment.

The system is optimized for SWaP (Size, Weight, and Power) requirements, featuring an optimized blind zone (≤10m), high measurement reliability (≥98%), and stable operation in rugged outdoor environments across a wide temperature range of -20℃ to +50℃ with IP67 sealed lens protection.

905nm Pulsed Laser

≥1200m Range

±1m Accuracy

≤20g Ultra-light

Class 1 Eye-Safe

Key Performance Advantages

Fully IEC 60825-1 Class 1 certified: Safe for continuous use in manned-near unmanned systems.
Ultra-small cylindrical profile: Minimizes space occupation for constrained drone gimbals and robotic housings.
Standard TTL communication: Directly compatible with flight controllers and embedded computing systems.
Extreme low power draw: Optimized for battery-powered UAVs and portable field devices.
Short blind zone design: Ensures reliable close-range detection for navigation and obstacle avoidance.
Broad operating temperature window: Performs consistently in harsh outdoor and industrial environments (-20℃ to +50℃).
PC software & SDK toolkit: Supports rapid integration, parameter adjustment, and secondary development.
Rugged structural design: Withstands vibration and shock during flight and mobile deployment.

Core Operational Functions

Real-time laser distance measurement and high-speed data output.
Integrated reverse polarity protection for secure hardware power input.
Fast boot-up capability ensuring immediate stable operation upon power-on.

Technical Specifications

Parameter	Standard Value	Technical Note
Laser Wavelength	905nm±5nm	Semiconductor Pulsed Laser
Minimum Detection Range	≤10m	Near-field sensing optimization
Maximum Detection Range (Large Target)	≥1200m	Range optimized for professional UAV missions
Distance Accuracy	±1m within 300m; ±2m beyond 300m	≤(1＋L×0.25%)m (L=target distance)
Measurement Reliability	≥98%	High-confidence data acquisition
Pulse Frequency Modes	Single Pulse, 1Hz, 2Hz	Stable multi-frequency operation
Working Temperature	-20℃ to +50℃	Storage: -30℃ to +50℃
Communication Port	TTL	Baud Rate: 115200bps
Input Voltage	DC 2.5V–3.5V	Typical 3.3V battery support
Power Usage	Standby ≤0.6W; Average ≤0.8W	SWaP-optimized management
Physical Size	≤Φ23mm × 46mm	Compact cylindrical form factor
Product Weight	≤20g	Professional UAV ranging engine
Environmental Grade	RoHS 2.0	Global industrial compliance
Lens Protection Level	IP67	Sealed optical window protection
Special Feature	Zero power standby	Power-off zero standby mode support

Electrical Connection Details

Recommended Input: DC 3.3V (Range: 2.5V–3.5V). The module uses a standard 4-pin connector set (host side: LNN1001571282004P; module side: A1002WRS4P).

Pin Number	Pin Name	Function Description	Signal Flow
1	VIN+	Positive power input	Power supply to module
2	VIN-	Negative power input	Power supply to module
3	TTL_RXD	Serial data input	Host controller → Module
4	TTL_TXD	Serial data output	Module → Host controller

Target Deployment Scenarios

UAV autonomous navigation & real-time obstacle avoidance.
Aerial surveying & topographic mapping systems.
Compact robotic automation & mobile sensing platforms.
Portable security monitoring & perimeter detection devices.
Industrial non-contact precision measurement tools.

Full Customization: Full customization is available for electrical interfaces, mechanical structures, and performance parameters to match specific project and OEM requirements.

Mechanical & Optical Interface Specification

The NLMA1200 defines a complete mechanical outline and optical alignment optimized for seamless UAV payload and robotic integration. All tolerances are optimized for mass assembly and reliable long-term use.

NLMA1200 Mechanical & Optical Interface Specification_1

Overall length: 45.9mm | Cylindrical Outline: ≤Φ23 × 46mm

Mounting Geometry: 3 pieces of Φ1.6mm holes uniformly distributed for frontend installation.
Precision Alignment: Φ3.5mm pilot positioning hole for anti-rotation and precision alignment.
Key Tolerances: 10±0.05mm, 19±0.04mm, 50.0±2.2mm for mass assembly consistency.
Optical Interface: Centered coaxial design with IP67 sealed protection for the optical window.
Installation Method: Frontend fixed mounting structure.