NTRON NLMB3000A 1535nm 3km laser ranging module for UAV payloads
NLMB3000A 3km laser ranging sensor for industrial automation and security
NLMB3000A 3km laser ranging module integrated into a UAV gimbal

NLMB3000A 1535nm 3km Laser Ranging Module

NTRON NLMB3000A is a professional 1535nm DPSS laser rangefinder module featuring an ultra-lightweight (≤32g) design. It delivers 3000m long-range precision with ±1m accuracy, specifically optimized for high-velocity UAV payloads, gimbal integration, and high-fidelity industrial sensors.

  • Range: ≥ 3000m (Large Target) | ±1m Accuracy
  • Safety: Certified Class 1 Eye-Safe (1535nm)
  • SWaP: Miniature footprint (≤ 48 × 30.5 × 21mm)
  • Weight: Industry-Leading ≤ 32g
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I. NLMB3000A 1535nm DPSS Laser Rangefinder Module

3km Long-Range Precision Sensing Engine for High-Performance Integration

As a specialized 3km laser ranging module, the NLMB3000A defines the standard for high-performance distance detection. Engineered for mission-critical reliability, this 1535nm DPSS module provides a tactical-grade detection baseline for UAV payloads and industrial automation infrastructure. By integrating proprietary technology, it delivers ±1m precision even in the most demanding operational environments. Weighing only ≤32g±1g, it remains the premier lightweight solution for global system integrators seeking an elite 3km sensing flagship.
UAV Payloads
Industrial Automation
Security & Defense
Eye-Safe Class 1

II. Key Technical Characteristics & Core Advantages of the 3km Laser Module

  • Certified Human Eye Safety: Advanced 1535nm DPSS laser technology, fully compliant with IEC 60825-1 Class 1 safety standards[cite: 2].
  • Elite SWaP Profile: An ultra-compact footprint (≤ 48mm × 30.5mm × 21mm) and extreme lightweight (≤32g±1g) for maximum payload efficiency.
  • High Precision & Confidence: Achieves ≤ ±1m accuracy with a ≥ 98% success rate and distance resolution ≤ 20m, providing high-fidelity data for automated systems[cite: 2].
  • Tight Beam Divergence: Exceptional angular resolution with beam divergence ≤ 0.6mrad[cite: 2].
  • Short-Range Blind Zone Optimization: Features an optimized ≤ 15m blind zone, ensuring reliable situational awareness during close-range maneuvers.
  • Industrial-Grade Ruggedness: Built to survive 1200g shock, 2.5g vibration, thermal shock (-50℃ to +70℃), and protected to IP67 standards for global deployment in extreme climates[cite: 2].
  • Full Function Integration: Supports range gating, first/last target identification, continuous reporting, power/temp acquisition, and serial firmware updates with PC Software Suite / SDK support[cite: 2].

III. Deep-Dive Application Scenarios for 3km Ranging

UAV Payloads & Aerospace Systems

For aerospace developers, the NLMB3000A provides the definitive safety buffer for high-speed Unmanned Aerial Vehicle (UAV) payloads. Its ≤32g±1g profile minimizes flight power consumption while delivering a 3000m reach, allowing professional airframes to navigate complex landscapes, avoid obstacles, or monitor distant structures with absolute precision.

Industrial Automation & Robotic Infrastructure

In large-scale industrial sectors, this module serves as a critical safety sensor for heavy-duty robotic systems, AGV navigation, and 3D mapping. Its rugged 1200g shock tolerance and wide temperature range (-40℃ to +70℃) ensure consistent performance near high-interference zones and harsh manufacturing environments.

IV. NLMB3000A Technical Specification Matrix

Parameter AttributeDetailed Specifications
Product ModelNTRON NLMB3000A
Laser Wavelength / Safety Level1535nm ± 5nm / Class 1 Eye-Safe (IEC 60825-1)
Measurement Range (Large Target)≥ 3000m (Visibility ≥8km, 2.3m×4.6m Panel, RH ≤60%)
Ranging Accuracy / Accuracy Rate≤ ±1m / ≥ 98%
Blind Zone / Distance Resolution≤ 15m / ≤ 20m
Beam Divergence≤ 0.6 mrad
Measurement RateSingle-shot or 1 Hz to 10 Hz
Communication InterfaceTTL (3.3V Level)
Operating / Storage Temp.-40°C ～ +70°C / -55°C ～ +75°C
Thermal Shock / Ingress Protection-50°C ～ +70°C / IP67 Rated
Shock / Vibration Resistance1200g, 1ms / 5～50～5Hz, 2.5g
Supply Voltage (DC)DC 4.5V ～ 16V
Power ConsumptionStandby ≤ 0.6W, Avg ≤ 1.5W@1Hz, Peak ≤ 7W@12V
Weight / Dimensions≤32g±1g / ≤ 48mm × 30.5mm × 21mm

V. Electrical Interface & Pin Assignment for OEM Integration

Connector: Changjiang A1257WR-S-6P | Interface: TTL 3.3V Level
Pin No.LabelElectrical Definition / RemarksDirection
P-1VIN+Input Power Positive (4.5V-16V)Power
P-2VIN-Input Power Negative / GNDPower
P-3POWER_ONModule Power Switch (ON: >2.7V, OFF: <0.3V, TTL 3.3V)Host → Module
P-4UART_TXSerial Port Transmit (TTL 3.3V Level)Module → Host
P-5UART_RXSerial Port Receive (TTL 3.3V Level)Host → Module
P-6GNDSerial Communication GroundCommon Ground

VI. Mechanical and Optical Interface Specifications for 3km Modules

The 3km laser ranging module is housed in a compact, precision-engineered chassis designed for secure mounting in high-vibration aerospace and industrial environments.

Mechanical and optical interface diagram of NLMB3000A 3km laser ranging module

Compact 48×30.5×21mm chassis with Tx Ø8mm / Rx Ø16mm optical apertures.

Effective Aperture: Tx Ø8mm, Rx Ø16mm | Mounting: 3 × M2.5 threaded holes

  • Optical Window Design: Includes a 16mm reception window and an 8mm laser emission window optimized for 1535nm DPSS output.
  • Compact Footprint: Maximum mechanical dimensions are constrained to ≤ 48.0mm × 30.5mm × 21.0mm for space-critical integration.
  • Secure Anchoring: Features 3 × M2.5 threaded holes distributed for rigid system tri-point fixation on high-speed platforms.

VII. Universal Adaptability: Beyond Defined 3km Boundaries

Beyond its primary roles, the NLMB3000A is inherently versatile for Security Surveillance, Professional Surveying, and Remote Monitoring. Its robust DPSS architecture and ultra-low power consumption ensure it remains the definitive technical solution for mission-critical long-range integration.

VIII. Elite 1535nm Er:Glass Ranging Solutions