SLY Series Rangefinders

Laser rangefinder is a kind of equipment to measure the distance of the target. It can measure the
distance information of the target by detecting the return signal of the emitting laser. This series of
products has mature technology and stable performance, which can be tested on a variety of static and
dynamic targets, and can be equipped and used on a variety of platforms. Laser rangefinder is used to
measure the range of the target. Its military application can be summarized into two categories:
reconnaissance and fire control. Reconnaissance includes individual reconnaissance, sea base, road
base, air base target detection and terrain detection. Fire control is mainly used in land air defense, sea
combat, short-range fire control equipment precision attack, as well as ship and airborne fire control
system in long-range ranging and target attack. According to different combat platforms, the laser range
finder can be applied to the optoelectronic reconnaissance system of different platforms such as ground
vehicle, light portable, air artillery, missile defense, airborne, shipborne and space detection as a
supporting ranging system. The rangefinder products are characterized by independent control of core
devices, small size and light weight, mass production, stable performance and easy operation.

1. 1-3km Laser Rangefinders

The SLY-LRS-1000 can measure the distance to the car above 1000m, the wavelength is 905nm
±15nm, the beam dispersion angle is ≤1mard, the range accuracy is 1m (15-100m range) and ±
(1+target distance*0.1%@>100m) The rangefinder can work normally under the temperature of -40℃
to 55℃.

1.1 Laser Rangefinders-905nm, SLY-LRS-600

Features:
⚫ Small size and light weight
⚫ Independent control of core devices
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for people over 600m
⚫ Developed based on 905 semiconductor laser

Application:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

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 Parameters SLY-LRS-600
Wavelength 905nm ±15nm
Optical aperture 20mm
Angle of beam divergence <1mrad
Target ranging capability >600m
The nearest ranging distance <15m
Ranging accuracy ±1m
Frequency of ranging ≥2Hz
Ranging ratio >98%
Voltage DC 3.3V
Operating power consumption <0.6W
Static power consumption <0.3W
Interface level TTL
Connector type GD125-04
Connection serial port baud rate 19200
Mounting hole 4-M2.5*6
Layout dimension <80*52*29mm
Barrel material Metallic
Weight <80
Working temperature -40°C ~ 55°C
Storage temperature -50°C ~ 70°C
Vibration Transport classification

1.2 Laser Rangefinders-905nm, SLY-LRS-1000

Features:
⚫ Small size and light weight
⚫ Independent control of core devices
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for people over 1km
⚫ Developed based on 905 semiconductor laser

Application:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

Parameters SLY-LRS-1000
Wavelength 905nm ±15nm
Optical aperture 28mm (Receiving aperture)
Angle of beam divergence ≤1mrad
Target ranging capability “≥1000m (Objective:2.3m*2.3m; reflectivity >30%; visibility>6km)”
The nearest ranging distance <15m
Ranging accuracy “15-100m: ±1,>100m: ±(1+L*0.1%); L: Distance to object”
Frequency of ranging ≥2Hz
Ranging ratio ≥98%
Voltage DC 3.3V
Operating power consumption <0.7W
Static power consumption <0.3W
Interface level TTL
Connector type GD125-04
Connection serial port baud 19200
rate
Layout dimension <83mm*70mm*38mm
Barrel material Metallic

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 Weight <100g
Location hole 3*⌀2
Mounting hole 3*M3
Working temperature -40-+55°C
Storage temperature -45-+ 70°C

2. 3-10km Laser Rangefinders (1535nm)

This series rangefinder is based on 1535 nm erbium-doped glass lasers, which are completely
independently developed and protected by patents and intellectual property rights, and have now
reached Class I human eye safety standards. The product is a single-pulse rangefinder that features
small size, light weight (SLY-LRS-0310S rangefinder weighs only 55g), high-cost performance and
adaptability to multiple platforms. The main functions are: single pulse range and continuous range,
distance selection, front and rear target display and self-test function, and continuous range frequency
adjustable from 1-10Hz. The series offers different products to meet different range requirements
(2.5km to 12km).

2.1 Laser Rangefinders-1535nm, SLY-LRS-0210S-01

Features:
⚫ Small size and light weight
⚫ Class I human eye safety standards
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for vehicle over 2.5km
⚫ Developed based on 1535nm Er: Glass Laser

Applications:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

Parameters SLY-LRS-0210S-01
Wavelength 1535nm±5nm
Main function “a. Single ranging and continuous ranging
b. Range gate, forward and aft target indication
c. self-checking function”
Operating range “≥2500m”
(Visibility > 5km; objective: 2.3*2.3m; reflectivity > 30%; humidity≤80%)”
Laser divergence angle ≤0.5mrad
Continuous ranging 1Hz-10Hz (adjustable)
frequency
Ranging accuracy ±1m
Accurate ranging ratio ≥98%
Minimum range ≤20m
Range resolution ≤30m
Voltage supply DC3 15V
Weight ≤70g
Power consumption “Average ≤1.5W; Peak ≤5W”
Dimension ≤55*42*35mm
Working temperature -40-+65°C
Storage temperature -55-+ 70°C
Communication interface TTL/RS422

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2.2 Laser Rangefinders-1535nm, SLY-LRS-0310S

Features:
⚫ Small size and light weight
⚫ Class I human eye safety standards
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for vehicle over 3km
⚫ Developed based on 1535nm Er:glass Laser

Applications:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

Parameters SLY-LRS-0310S
Wavelength 1535nm±5nm
Main function “a. Single ranging and continuous ranging
b. Range gate, forward and aft target indication
c. self-checking function”
Operating range “≥3000m” (Visibility > 5km; objective: 2.3*2.3m;
reflectivity > 30%; humidity≤80%)”
Laser divergence angle ≤0.5mrad
Continuous ranging frequency 1Hz-10Hz (adjustable)
Ranging accuracy ±1m
Accurate ranging ratio ≥98%
Minimum range ≤20m
Range resolution ≤30m
Voltage supply DC9-16V
Weight ≤55g
Power consumption “Average ≤1.5W; Peak ≤5W”
Dimension ≤52*26*42mm
Working temperature -40-+65°C
Storage temperature -55-+ 70°C
Communication interface TTL/RS422

2.3 Laser Rangefinders-1535nm, SLY-LRS-0310

Features:
⚫ Small size and light weight
⚫ Class I human eye safety standards
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for vehicle over 4km
⚫ Developed based on 1535nm Er: Glass Laser

Applications:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

Parameters SLY-LRS-0310
Wavelength 1535nm±5nm
Main function “a. Single ranging and continuous ranging
b. Range gate, forward and aft target indication
c. self-checking function”
Operating range “≥4000m”
(Visibility > 6km; objective: 2.3*2.3m; reflectivity > 30%; humidity≤80%)”
Laser divergence angle ≤0.5mrad

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 Continuous ranging frequency 1Hz-10Hz (adjustable)
Ranging accuracy ±2m
Accurate ranging ratio ≥98%
Minimum range ≤20m
Range resolution ≤30m
Voltage supply DC9-16V
Weight ≤80g
Power consumption “Average ≤1.5W; Peak ≤5W”
Dimension ≤68*45*36mm
Working temperature -40-+65°C
Storage temperature -55-+ 70°C
Communication interface TTL/RS422

2.4 Laser Rangefinders-1535nm, SLY-LRS-0610

Features:
⚫ Small size and light weight
⚫ Class I human eye safety standards
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for vehicle over 6km
⚫ Developed based on 1535nm Er: Glass Laser

Applications:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

Parameters SLY-LRS-0610
Wavelength 1535nm±5nm
Main function “a. Single ranging and continuous ranging
b. Range gate, forward and aft target indication
c. self-checking function”
Operating range “≥6000m”
(Visibility > 10km; objective: 2.3*2.3m; reflectivity > 30%; humidity≤80%)”
Laser divergence angle ≤0.3mrad
Continuous ranging frequency 1Hz-10Hz (adjustable)
Ranging accuracy ±2m
Accurate ranging ratio ≥98%
Minimum range ≤20m
Range resolution ≤30m
Voltage supply DC9-16V
Weight ≤120g
Power consumption “Average ≤1.5W; Peak ≤5W”
Dimension ≤72*60*46mm
Working temperature -40-+65°C
Storage temperature -55-+ 70°C
Communication interface TTL/RS422

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2.5 Laser Rangefinders-1535nm, SLY-LRS-0810

Features:
⚫ Small size and light weight
⚫ Class I human eye safety standards
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for vehicle over 8km
⚫ Developed based on 1535nm Er:glass Laser

Applications:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

Parameters SLY-LRS-0810
Wavelength 1535nm±5nm
Main function “a. Single ranging and continuous ranging
b. Range gate, forward and aft target indication
c. self-checking function”
Operating range “≥8000m”
(Visibility > 12km; objective: 2.3*2.3m; reflectivity > 30%; humidity≤80%)”
Laser divergence angle ≤0.3mrad
Continuous ranging 1Hz-10Hz (adjustable)
frequency
Ranging accuracy ±2m
Accurate ranging ratio ≥98%
Minimum range ≤50m
Range resolution ≤30m
Voltage supply DC9-16V
Weight ≤140g
Power consumption “Average ≤1.5W; Peak ≤5W”
Dimension ≤80*68*46mm
Working temperature -40-+65°C
Storage temperature -55-+ 70°C
Communication interface TTL/RS422

2.6 Laser Rangefinders-1535nm, SLY-LRS-1010

Features:
⚫ Small size and light weight
⚫ Class I human eye safety standards
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for vehicle over 10km
⚫ Developed based on 1535nm Er:glass Laser

Applications:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

Parameters SLY-LRS-1010
Wavelength 1535nm±5nm
Main function “a. Single ranging and continuous ranging
b. Range gate, forward and aft target indication
c. self-checking function”
Operating range “≥10000m”
(Visibility > 15km; objective: 2.3*2.3m; reflectivity > 30%; humidity≤80%)”

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 Laser divergence angle ≤0.3mrad
Continuous ranging frequency 1Hz-10Hz (adjustable)
Ranging accuracy ±3m
Accurate ranging ratio ≥98%
Minimum range ≤50m
Range resolution ≤30m
Voltage supply DC9-16V
Weight ≤220g
Power consumption “Average ≤1.5W; Peak ≤5W”
Dimension ≤100*60*70mm
Working temperature -40-+65°C
Storage temperature -55-+ 70°C
Communication interface TTL/RS422

2.7 Laser Rangefinders-1535nm, SLY-LRS-1210

Features:
⚫ Small size and light weight
⚫ Class I human eye safety standards
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for vehicle over 12km
⚫ Developed based on 1535nm Er:glass Laser

Applications:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

Parameters SLY-LRS-1210
Wavelength 1535nm±5nm
Main function “a. Single ranging and continuous ranging
b. Range gate, forward and aft target indication
c. self-checking function”
Operating range “≥12000m”
(Visibility > 20km; objective: 2.3*2.3m; reflectivity > 30%; humidity≤80%)”
Laser divergence angle ≤0.3mrad
Continuous ranging frequency 1Hz-10Hz (adjustable)
Ranging accuracy ±3m
Accurate ranging ratio ≥98%
Minimum range ≤50m
Range resolution ≤30m
Voltage supply DC9-16V
Weight ≤350g
Power consumption “Average ≤1.5W; Peak ≤5W”
Dimension ≤85*75*73mm
Working temperature -40-+65°C
Storage temperature -55-+ 70°C
Communication interface TTL/RS422

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3. 10-20+ km Laser Rangefinders
This series rangefinder is based on the 1570nm OPO laser developed completely in-house, protected
by patents and intellectual property rights, and has now met the Class I human eye safety standard.
The product is a single pulse rangefinder with, cost-effective and adaptable to a variety of platforms.
The main functions are: single pulse rangefinder and continuous rangefinder, distance selection, front
and rear target display and self-test function, continuous rangefinder frequency adjustable from 1-5Hz.
The average power consumption of the product is less than 50W and the peak power consumption is
less than 100W.
3.1 Laser Rangefinders-1570nm, SLY-LRS-1505
Features:
⚫ High reliability
⚫ Class I human eye safety standards
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for vehicle over 15km
⚫ Developed based on 1570nm OPO laser

Applications:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

Parameters SLY-LRS-1505
Wavelength 1570nm±5nm
Main function “a. Single ranging and continuous ranging
b. Range gate, forward and aft target indication
c. self-checking function”
Operating range “≥15000m”
(Visibility > 20km; objective: 2.3*2.3m; reflectivity > 30%; humidity≤80%)”
Laser divergence angle ≤1mrad
Continuous ranging frequency 1Hz-5Hz (adjustable)
Ranging accuracy ±3m
Accurate ranging ratio ≥98%
Minimum range ≤200m
Range resolution ≤50m
Voltage supply DC 18-36V
Weight ≤1300g
Power consumption “Average ≤50W; Peak ≤100W”
Dimension ≤180*64*108mm
Working temperature -40-+65°C
Storage temperature -55-+ 70°C
Communication interface TTL/RS422

3.2 Laser Rangefinders-1570nm, SLY-LRS-2005

Applications:
⚫ Laser ranging
⚫ Targeting

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⚫ Photoelectric reconnaissance

Parameters SLY-LRS-2005
Wavelength 1570nm±5nm
Main function “a. Single ranging and continuous ranging
b. Range gate, forward and aft target indication
c. self-checking function”
Operating range “≥20000m”
(Visibility > 25km; objective: 2.3*2.3m; reflectivity > 30%; humidity≤80%)”
Laser divergence angle ≤1mrad
Continuous ranging frequency 1Hz-5Hz (adjustable)
Ranging accuracy ±3m
Accurate ranging ratio ≥98%
Minimum range ≤200m
Range resolution ≤50m
Voltage supply DC 18-36V
Weight ≤2000g
Power consumption “Average ≤50W; Peak ≤100W”
Dimension ≤207*125*80mm
Working temperature -40-+65°C
Storage temperature -55-+ 70°C
Communication interface TTL/RS422

4. 20+km Laser Rangefinders

This series rangefinder is based on a 1064nm solid-state laser developed completely in-house and
protected by patents and intellectual property rights. The product is a single pulse rangefinder with,
cost-effective and adaptable to a variety of platforms. The main functions of the 10-30km rangefinder
are: single pulse rangefinder and continuous rangefinder, distance selection, front and rear target
display and self-test function, continuous rangefinder frequency adjustable from 1-5Hz, and the ability
to work normally at temperatures from -40 degrees Celsius to 65 degrees Celsius.

Among them, the SLY-LR-5020 -50km rangefinder has more functions, with three kinds of status display
and command switching in working, standby and fault, with power-on status monitoring and feedback
function. The product can launch the laser pulse number statistics, dispersion angle, repeat frequency
staging adjustable function. In terms of product protection, the SLY-LR-5020 rangefinder also provides
overcurrent protection, overheat protection and power input overvoltage protection.

4.1 Laser Rangefinders-1064nm, SLY-LR-1005

Features:
⚫ High reliability
⚫ High impact resistance
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for vehicle over 10km
⚫ Developed based on 1064nm solid state laser

Application:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

Parameters SLY-LR-1005
Wavelength 1064nm±10nm
Main function “a. Single ranging and continuous ranging
b. Range gate, forward and aft target indication
c. self-checking function”

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 Operating range “≥10000m”
(Visibility > 15km; objective: 2.3*2.3m; reflectivity > 30%; humidity≤80%)”
Laser divergence angle ≤0.5mrad
Continuous ranging frequency 1Hz-5Hz (adjustable)
Ranging accuracy ±3m
Accurate ranging ratio ≥98%
Minimum range ≤100m
Range resolution ≤50m
Voltage supply DC 18-36V
Weight ≤1000g
Power consumption “Average ≤50W; Peak ≤100W”
Dimension ≤150*82*71mm
Working temperature -40-+65°C
Storage temperature -55-+ 70°C
Communication interface TTL/RS422

4.2 Laser Rangefinders-1064nm, SLY-LR-2005

Features:
⚫ High reliability
⚫ High impact resistance
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for vehicle over 20km
⚫ Developed based on 1064nm solid state laser

Application:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

Parameters SLY-LR-2005
Wavelength 1064nm±10nm
Main function “a. Single ranging and continuous ranging
b. Range gate, forward and aft target indication
c. self-checking function”
Operating range “≥20000m”
(Visibility > 30km; objective: 2.3*2.3m; reflectivity > 30%; humidity≤80%)”
Laser divergence angle ≤0.5mrad
Continuous ranging 1Hz-5Hz (adjustable)
frequency
Ranging accuracy ±5m
Accurate ranging ratio ≥98%
Minimum range ≤200m
Range resolution ≤50m
Voltage supply DC 18-36V
Weight ≤1300g
Power consumption “Average ≤50W; Peak ≤100W”
Dimension ≤180*64*108mm
Working temperature -40-+65°C
Storage temperature -55-+ 70°C
Communication interface TTL/RS422

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4.3 Laser Rangefinders-1064nm, SLY-LR-3005

Features:
⚫ High reliability
⚫ High impact resistance
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for vehicle over 30km
⚫ Developed based on 1064nm solid state laser

Application:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

Parameters SLY-LR-3005
Wavelength 1064nm±10nm
Main function “a. Single ranging and continuous ranging
b. Range gate, forward and aft target indication
c. self-checking function”
Operating range “≥30000m”
(Visibility > 40km; objective: 2.3*2.3m; reflectivity > 30%; humidity≤80%)”
Laser divergence angle ≤0.5mrad
Continuous ranging frequency 1Hz-5Hz (adjustable)
Ranging accuracy ±5m
Accurate ranging ratio ≥98%
Minimum range ≤300m
Range resolution ≤50m
Voltage supply DC 18-36V
Weight ≤3200g
Power consumption “Average ≤2000W; Peak ≤300W”
Dimension ≤200*200*85mm
Working temperature -40-+65°C
Storage temperature -55-+ 70°C
Communication interface TTL/RS422

4.4 Laser Rangefinders-1064nm, SLY-LR-5020

Features:
⚫ High reliability
⚫ High impact resistance
⚫ Stable performance and easy to use
⚫ Provide customization service
⚫ Distance measurement for vehicle over 50km
⚫ Developed based on 1064nm solid state laser

Application:
⚫ Laser ranging
⚫ Targeting
⚫ Photoelectric reconnaissance

Parameters SLY-LR-5020
Wavelength 1064nm±10nm
Operating range “≥50000m”
(Visibility > 60km; objective: 2.3*2.3m; reflectivity > 30%; humidity≤80%)”
Laser divergence angle ≤0.6mrad
Continuous ranging frequency 1Hz-20Hz (adjustable)
Ranging accuracy ±5m
Accurate ranging ratio ≥98%

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 Minimum range ≤300m
Range resolution ≤50m
Voltage supply DC 18-36V
Weight ≤10000g
Power consumption “Average ≤200W; Peak ≤300W”
Dimension ≤460*231*166mm
Working temperature -40-+65°C
Storage temperature -55-+ 70°C
Communication interface TTL/RS422

Main Function:
1) With working, standby and fault state three states. Program control standby function standby state
pump power and thermal control power can be selected to turn off. The default state of the device
is the working state, standby state can be switched through the communication command, the
default state can be configured through the communication command, and power down does not
clear.
2) With power-on state monitoring and feedback function, if in a fault state, periodic self-test and
feedback on the report.
3) With the number of laser pulsed emitted statistics, version number management function, power
down does not clear
4) With the external time uniform work code (not more than 25Hz)
5) With dispersion angle, repeat frequency adjustable function.
6) Power input with overvoltage protection function
7) Overcurrent protection function: the laser LD current exceeds the maximum tolerable automatically
jump to standby.
8) Overheating protection function: the internal heat sink temperature exceeds the standby
temperature tolerance value automatically jump to standby, and send a fault massage.
9) Should have a working state status indication function.

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