Compact Laser Rangefinder Module with 1535nm Eye-safe Technology
Full-Scenario High-Precision Laser Rangefinder Sensor with All-Weather Reliability and 2500m Range
Drone Laser Rangefinder Modules for Unmanned Aerial Vehicle Payloads and Precision Industrial Sensors

NLMB2500A 1535nm Compact Laser Rangefinder Module

NTRON NLMB2500A is a professional 1535nm Erbium Glass laser rangefinder module featuring an ultra-lightweight (≤45g) design. It delivers 2500m long-range precision optimized for UAV gimbals, electro-optical pods, and high-fidelity industrial sensors.

  • Range: ≥ 2500m (Large Target) | ±1m Accuracy
  • Safety: Certified Class 1 Eye-Safe (1535nm)
  • SWaP: Miniature footprint (≤ Φ34mm × 55mm)
  • Frequency: 1Hz – 10Hz Configurable Repetition Rate
Inquiry Now
Category:

I. NLMB2500A 1535nm Compact Laser Rangefinder Module

Precision Distance Sensing Engine for Mission-Critical Integration

The NTRON NLMB2500A is a high-performance compact laser rangefinder module engineered for mission-critical integration where space is at a premium and performance is non-negotiable. Utilizing cutting-edge 1535nm DPSS technology, it delivers a Class 1 eye-safe measurement range exceeding 2500m with a consistent professional accuracy of ±1m.

With its ultra-lightweight (≤45g) architecture, the NLMB2500A has established itself as the industry benchmark for both Drone Laser Rangefinder Modules and Precision Industrial Sensors.

UAV Payloads
Industrial Sensing
Tactical Defense
Eye-Safe Class 1

II. Key Technical Characteristics & Core Advantages

  • Certified Human Eye Safety: Advanced 1535nm erbium glass laser technology, fully compliant with IEC 60825-1 Class 1 safety standards.
  • Extreme SWaP Optimization: A miniature footprint (≤ Φ34mm × 55mm) and minimal weight (≤ 45g) ensure maximum payload efficiency.
  • High Accuracy & Rate: Exceptional measurement reliability with accuracy ≤ ±1m and accuracy rate ≥ 98%.
  • Unmatched Environmental Resilience: Full operational capacity from -40°C to +60°C with IP67 ruggedness.
  • Near-Field Precision: Optimized blind zone performance of ≤ 15m, facilitating accurate short-range obstacle detection.
  • Flexible Integration: Dual RS422/TTL interfaces with customizable baud rates and supporting PC Software Suite & SDK for secondary development.
  • Sophisticated Logic Processing: Integrated support for range gating, multi-target identification (first/last target), continuous reporting, and self-test diagnostics.

III. Deep-Dive Application Scenarios

Drone Laser Rangefinder Modules for UAV Payloads

In the demanding sector of UAV operations, the NLMB2500A serves as the primary engine for aerial reconnaissance, 3D terrain mapping, and precision altitude-hold systems. Its 10Hz repetition rate allows gimbals to maintain target lock-on with surgical precision.

Precision Industrial Laser Rangefinder Sensors for Rugged Environments

As a pillar for industrial automation, this module provides high-fidelity spatial data for high-precision industrial sensors, ensuring consistent performance near high-interference zones.

IV. Technical Specification Matrix

Parameter AttributeDetailed Specifications
Product ModelNTRON NLMB2500A
Laser Wavelength1535nm ± 5nm (Erbium Glass)
Large Target Range (2.3m × 4.6m)≥ 2500m (Visibility ≥8km, Reflectivity 0.3, RH ≤60%)
Standard Target Range (1.7m × 0.5m)≥ 1500m (Visibility ≥8km, Reflectivity 0.3, RH ≤60%)
Extended Large Target Range≥ 4000m (Visibility ≥8km, Reflectivity 0.3, RH ≤60%)
Ranging Accuracy / Accuracy Rate≤ ±1m / ≥ 98%
Blind Zone / Distance Resolution≤ 15m / ≤ 48m
Beam Divergence≤ 0.9 mrad
Measurement RateSingle-shot, 1Hz, 2Hz, 3Hz, 4Hz, 5Hz, 10Hz
Communication InterfaceRS422 / TTL (Switchable, cannot be used simultaneously)
Baud Rate38400 bps (Default) / 9600 / 57600 / 115200 bps
Operating / Storage Temp.-40°C ～ +60°C / -55°C ～ +70°C
Supply Voltage (DC)DC 4.5V ～ 16V (Typical value: 5V)
Power ConsumptionStandby ≤ 0.6W, Avg ≤ 1.5W@1Hz, Peak ≤ 7W@12V
Weight / Dimensions≤ 45g / ≤ Φ34mm × 55mm

V. Electrical Interface & Pin Assignment

Connector: A1002WR-S-10P (Module Side) | Mating Connector: A1002H-10P
Pin No.LabelElectrical DefinitionDirection
P-1VIN+Input Power Positive (4.5V – 14V)Power Input
P-2COMInput Power Negative / GNDPower Input
P-3POWER_CTLHigh level (3.3V) or floating state is active; low level is inactiveHost → Module
P-4RS422_TXD+RS422 Transmit Data (+)Module → Host
P-5RS422_TXD-RS422 Transmit Data (-)Module → Host
P-6RS422_RXD-RS422 Receive Data (-)Host → Module
P-7RS422_RXD+RS422 Receive Data (+)Host → Module
P-8GNDCommunication Ground (COMM_GND)Ground
P-9TTL_RXDUART Receive (3.3V TTL)Host → Module
P-10TTL_TXDUART Transmit (3.3V TTL)Module → Host

VI. Mechanical and Optical Interface Diagram

Mechanical and Optical Interface Diagram of NTRON NLMB2500A 1535nm Laser Rangefinder Module for UAV Payloads
Effective Aperture: Tx Ø7mm, Rx Ø22mm | Mounting: 3 × Ø2.3mm holes

VII. Universal Adaptability

Beyond its primary roles, the NLMB2500A is inherently adaptable for Security Defense, Infrastructure Surveying, and Robotic Exploration. Whenever a project demands a compact laser rangefinder module with absolute eye safety and military-grade reliability, the NLMB2500A provides the definitive solution.

NTRON PRECISION LASER TECHNOLOGY

VIII. Elite 1535nm Er:Glass Ranging Solutions