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L1535 8km Laser Rangefinder Module

LSP-LRS-0810A Human Eye Safety Laser Ranging Module is developed based on Lumimetric's self-developed 1535nm Er:glass laser, which belongs to the first class of human eye safety products. The product is a single pulse distance measurement, the distance measurement for vehicles can reach 8km, and the distance measurement for people is more than 3km.

PDF.jpg DataSheet - L1535 Laser Rangefinder


Small size and lightweight

Class I human eye safety standards

Stable performance and easy-to-use

Provide customization service

Distance measurement for vehicle(2.3*2.3m) over 4km

Developed based on 1535nm Er: Glass Laser


Laser Ranging



Product Description

L1535 Series Laser Rangefinder is fully self-developed based on an eye-safe wavelength of 1535nm erbium-doped glass laser with patent protection with intellectual property production, with a range distance from 3km to 10km and can be mounted in a variety of platforms. The products have the features of small, lightweight, and high-cost performance.

The main function of this product : 

“a. Single ranging and continuous ranging

b. Range gate, forward and aft target indication

c. self-checking function”

Technical Data





Main function

“a. Single ranging and continuous ranging

 b. Range gate, forward and aft target indication

 c. self-checking function”

Operating range


(Visibility > 12km; objective: 2.3*2.3m; reflectivity  30%; humidity≤80%)” 

Laser divergence angle


Continuous ranging frequency

1Hz-10Hz (adjustable)

Ranging accuracy

±2m (RMS)

Accurate ranging ratio


Minimum range


Range resolution

≤30m (Multi Targets)

Voltage supply

DC9-16V (Customizable)



Power consumption

“Average ≤1.5W (@1Hz); Peak ≤5W”



Working temperature


Storage temperature

-50-+ 70°C

Communication interface



• The laser emitted by this ranging module is a 1535nm laser that is safe for human eyes. Although it is within the eye-safe wavelength range, it is advised not to look directly into the laser beam.

• When adjusting the parallelism of the three optical axes, be sure to cover the receiving lens. Failure to do so may result in permanent damage to the detector due to excessively strong return signals.

• This range-finding module is not airtight. Ensure that the relative humidity of the operating environment is below 80% and that the environment is clean and hygienic to prevent damage to the laser.

• The measuring range of the ranging module depends on atmospheric visibility and the nature of the target. Range measurements will be reduced in fog, rain, and sandstorm conditions. Targets like clusters of green leaves, white walls, and exposed limestone have a higher reflectivity, which can increase the measuring range. Additionally, the range decreases as the angle of the laser beam to the target increases.

• It is strictly forbidden to emit lasers at highly reflective targets such as glass or white walls within 20 meters, as strong reflections may cause damage to the APD detector.

• Do not plug or unplug cables while the device is powered on. Ensure that the power supply polarity is connected correctly to avoid permanent damage to the equipment.