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

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.
Unmatched Environmental Resilience: Full operational capacity from -40°C to +60°C, featuring military-grade ruggedness.
Near-Field Precision: Optimized blind zone performance of ≤ 15m, facilitating accurate short-range obstacle detection.
Sophisticated Logic Processing: Integrated support for range gating, multi-target identification, 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 Attribute	Detailed Specifications
Product Model	NTRON NLMB2500A
Laser Wavelength	1535nm ± 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%)
Ranging Accuracy	≤ ±1m (Consistent across the full scale)
Pulse Repetition Frequency (PRF)	1Hz, 2Hz, 3Hz, 4Hz, 5Hz, 10Hz (Configurable)
Operating / Storage Temp.	-40°C ～ +60°C / -55°C ～ +70°C
Supply Voltage (DC)	DC 4.5V ～ 16V (Typical value: 5V)
Power Consumption	Standby ≤ 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.	Label	Electrical Definition	Direction
P-1	VIN+	Input Power Positive (4.5V-16V)	Power
P-2	COM	Input Power Negative / GND	Power
P-3	POWER_CTL	High: ON / Low: OFF	Host → Module
P-4	RS422_TXD+	RS422 Transmit Data (+)	Module → Host
P-5	RS422_TXD-	RS422 Transmit Data (-)	Module → Host
P-9	TTL_RXD	UART Receive (3.3V TTL)	Host → Module
P-10	TTL_TXD	UART 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.