3km 1535nm Ultra-Compact Laser Rangefinder Module for OEM Integration

3km Laser Range Finder Module | Huanxin
Parameter 3K-193 3K-193L
Minimum Range ≤30 m ≤50 m
Beam Divergence ≤0.5 mrad ≤0.7 mrad
Supply Voltage DC +5 V DC 6–36 V
Recommended Integration Compact Payload Wide-Voltage Platform

Engineering Integration & SWaP Architecture

Engineered with a critical focus on SWaP-C (Size, Weight, Power, and Cost), the Huanxin 3km 1535nm module delivers reliable ranging in an ultra-compact package weighing as low as ≤29g to ≤60g. It is specifically built for integration into micro-gimbals (2-axis/3-axis sUAS payloads), handheld thermal monoculars, and body-worn targeting devices where strict weight constraints govern flight endurance and thermal balance.

Electrical Interface & Command Protocol

The module interfaces via standard UART / 3.3V TTL logic levels with a default 115,200 bps baud rate. Designed with an ultra-low energy footprint (<1.5W typical standby power), it supports continuous single-pulse ranging and 1Hz–5Hz rapid telemetry. Hardware trigger pins enable synchronization with optical camera shutters.

Atmospheric Ranging Performance

Evaluated under typical atmospheric conditions (visibility ≥ 10 km):

  • NATO Standard Target (2.3m × 2.3m, 30% albedo): ≥ 3,000 m
  • Human Target (1.7m × 0.5m, 10% albedo): ≥ 1,500 m
  • Blind Zone (Min. Range): ≤ 15 m (optimized for close-range targeting)
Integration Resources: Review our Micro-Gimbal Laser Integration Checklist for pinout schematics and vibration isolation recommendations. Need extended standoff range? Explore our 4km Tactical Rangefinder Module.

3K Series Technical Specifications

3K-193 Datasheet (PDF) 3K-193L Datasheet (PDF)
Parameter 3K-193 3K-193L
Laser Wavelength 1535 ± 5 nm 1535 ± 5 nm
Maximum Measuring Range ≥3 km
(Visibility ≥10 km, RH ≤80%, moderate turbulence, target albedo ≥0.2, target size 2.3 m × 2.3 m) 		≥3 km
(Visibility ≥15 km, moderate turbulence, target albedo 0.2, target size 7.0 m × 3.3 m × 2.3 m, through optical window)
Minimum Measuring Range ≤30 m ≤50 m
Ranging Accuracy ±1 m or better ≤±1 m
Laser Beam Divergence ≤0.5 mrad ≤0.7 mrad
Ranging Success Rate ≥98% ≥98%
Laser Repetition Frequency 1 Hz–10 Hz adjustable 1 Hz–10 Hz adjustable
Continuous Ranging Capability Standard intermittent firing Max continuous run: ≥10 min;
Max interval before next run: ≤15 s
Supply Voltage DC 5 V +6 V to +36 V DC
Operating Temperature −40°C to +60°C −40°C to +65°C
Storage Temperature −50°C to +70°C −55°C to +70°C
Dimensions & Weight 48.5 × 36 × 26 mm | ≤60 g Customized OEM housing (Contact Sales)

Note: Optical interfaces, electrical pinouts, communication protocols (UART TTL / RS-422), and mechanical dimensions can be tailored upon request.

OEM System Integration

Explore the Complete 1535nm Laser Rangefinder Series

This module is designed for dedicated SWaP and payload requirements. For full optical axis calibration protocols, multi-sensor EO/IR gimbal engineering data, and side-by-side SWaP specifications, review our central catalog of OEM 1535nm Laser Rangefinder Modules (3km–20km) .

Select Measurement Range for Detailed Specifications:
Email：info@laserrangefinder.cc
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Non-Disclosure Agreement (NDA):
We respect your proprietary system designs. Huanxin is glad to sign a mutual NDA before receiving detailed payload drawings or project specifications.