GK Semi

Laser Rangefinders

CX-CJ-3KM

Laser Rangefinder Module

Eye-safe wavelength · 3 km precision ranging | For civil UAVs, smart power inspection and industrial surveying.

CX-CJ-3KM product photograph
Wavelength1535 ± 5 nm
Minimum range≤15 m
Maximum range≥3 km
Accuracy<±1 m RMS
Rate1–10 Hz

01 / Product introduction

Product introduction

A high-accuracy long-range laser ranging module built around a 1535 nm eye-safe erbium-glass laser. Compact, ultra-light and low-power, it combines long reach, high accuracy and all-weather interference rejection, and integrates readily into civil UAV electro-optical gimbals, handheld observation optics, industrial inspection equipment and smart security systems.

02 / Core application scenarios

Core application scenarios

01
Civil UAVs and electro-optical gimbalsTarget ranging for power-line inspection, GIS surveying, agriculture and forestry, and disaster response.
02
Industrial surveying and infrastructure inspectionDeformation monitoring of large structures and bridges, overhead line clearance measurement, and mine terrain and stockpile volume surveys.
03
Smart security and campus managementPerimeter protection, high-precision target monitoring at airports and ports, and long-range forest-fire detection.
04
Outdoor sport and handheld opticsGolf rangefinders, hiking and observation binoculars, and handheld thermal ranging devices.

03 / Core advantages

Core advantages

01
1535 nm eye-safe operationThe 1535 nm band meets Class 1 eye-safety requirements, allowing measurement in public spaces and across civil applications.
02
Long reach with high accuracyUp to 3 km against large structures and natural terrain, with typical accuracy of ±1 m and a selectable 1–10 Hz update rate.
03
Ultra-light and low powerHighly integrated opto-mechanical design keeps the module light and power draw low, extending endurance on battery-powered platforms such as UAVs.
04
Strong environmental toleranceResists glare, smoke, rain and snow, and operates from −40 to +70 °C for demanding outdoor and industrial conditions.

04 / Core technical specifications

Core technical specifications

Wavelength
1535 ± 5 nm
Minimum range
≤15 m
Maximum range
≥3 km
Accuracy
<±1 m RMS
Rate
1–10 Hz
Interface
TTL
Input
DC 12 V
Weight
<44 g
Envelope
≤41 × 31 × 16 mm

04 / Project integration

Integration essentials

Interface
TTL
Input
DC 12 V
Weight
<44 g
Envelope
≤41 × 31 × 16 mm