1535nm Laser Rangefinder Module

Long-range, high-precision, tactical-grade embedded eye-safe laser ranging core solution.

First-Class Eye Safety
Extended Operational Range
High Precision & Stability
Military-Grade Robustness
High Integrability

Overview

VL-ELRF Series: The Ultimate Precision in Tactical Eye-Safe Ranging

The VL-ELRF series is a premier line of laser rangefinding modules built upon independently developed 1535nm Erbium-doped glass laser technology. These modules are specifically engineered for high-performance integration in defense, security, and professional optoelectronic systems. By utilizing the single-pulse Time-of-Flight (TOF) method, the series achieves exceptional accuracy over extreme distances while maintaining a compact and lightweight form factor.

Designed to withstand harsh environments, the VL-ELRF series features Class 1 eye safety, high shock resistance, and stable performance across a broad temperature range. Whether integrated into handheld reconnaissance devices, vehicle-mounted systems, or high-end UAV gimbals, these modules provide the reliable data necessary for precision target acquisition and long-range observation.

The VL-ELRF series (1535nm Eye-safe Laser Rangefinder) is designed for a wide array of professional and tactical applications due to its long-range capabilities, high precision, and human-safe wavelength. Below are the primary application fields for this series:

Handheld Tactical Equipment: These modules are highly suitable for integration into portable reconnaissance devices and handheld long-range observers.
Airborne Payloads (UAV Pods & Gimbals): Due to their compact size and lightweight design, they are ideal core sensors for UAV gimbals, airship pods, and helicopter-mounted electro-optical systems.
Vehicle-Mounted Reconnaissance & Observation: The series can be integrated into land-based vehicle observation towers or armored vehicle fire control systems for long-distance target acquisition.
Advanced Sighting Systems: These modules provide critical distance data for high-end optical sighting systems used in professional and tactical environments.
Strategic Long-Range Monitoring: Flagship models (like the VL-ELRF-15) are optimized for fixed-station strategic observation platforms, offering detection ranges exceeding 20km for large targets.
System Integration & Secondary Development: With standardized communication protocols (TTL/RS422) and high shock resistance (up to 75g), the modules serve as the core ranging engine for a variety of custom electro-optical platforms.

Qualification

General Technical Specifications

Feature	Specification	Remarks
Operating Wavelength	1535 nm ± 5 nm	Erbium glass laser
Laser Eye Safety	Class 1	Eye-safe at all distances
Ranging Accuracy	≤ ±1.0 m to ±1.5 m	High-precision TOF measurement
Ranging Frequency	1 Hz to 10 Hz	Adjustable
Beam Divergence	≤ 0.3 mrad	High collimation (VL-ELRF-3 is <0.6mrad)
Operating Temp	-40°C to +60°C	Up to +70°C for some models
Storage Temp	-55°C to +70°C	Up to +75°C for some models
Impact Resistance	75 g	High durability for tactical missions
Power Supply	DC 5V ~ 28V	Wide voltage input

Selection Chart

VL-ELRF Series Selection Guide

Model	*Vehicle Range (≥)**	*Large Target Range (≥)**	Weight	Primary Interface
VL-ELRF-3	3,000 m	5,000 m	< 33 g	TTL/RS422
VL-ELRF-5	5,000 m	6,000 m	< 40 g	TTL
VL-ELRF-6	6,000 m	7,000 m	< 55 g	RS422
VL-ELRF-8	8,000 m	10,000 m	< 75 g	RS422
VL-ELRF-10	10,000 m	12,000 m	< 130 g	RS422
VL-ELRF-15	15,000 m	20,000 m	< 270 g	RS422

Dimensions Diagram

VL-ELRF-3

VL-ELRF-5

VL-ELRF-6

VL-ELRF-8

VL-ELRF-10

VL-ELRF-15

Explore Series

	Model	Large Target Range* (≥)	Primary Interface	Weight	Vehicle Range* (≥)
	VL-ELRF-3	5,000 m	TTL/RS422	< 33 g	3,000 m		VL-ELRF-5	6,000 m	TTL	< 40 g	5,000 m		VL-ELRF-6	7,000 m	RS422	< 55 g	6,000 m		VL-ELRF-8	10,000 m	RS422	< 75 g	8,000 m		VL-ELRF-10	12,000 m	RS422	< 130 g	10,000 m		VL-ELRF-15	20,000 m	RS422	< 270 g	15,000 m