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LR120K1 1064 nm Long-Range Laser Rangefinder & Target Designator for Artillery Fire Support and EO/IR Platforms

LR120K1 1064 nm Long-Range Laser Rangefinder & Target Designator for Artillery Fire Support and EO/IR Platforms

¥74,000.00 USD
¥74,000.00 USD
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The LR120K1 is a long-range 1064 nm laser rangefinder and target designator that delivers ≥120 mJ pulse energy, ≤0.15 mrad divergence, ≥30 km ranging, ±5 m accuracy and 20 Hz coded illumination. Powered from 18–32 V DC with ≤120 W average power, RS422 and CAN 2.0B interfaces, and a compact ≤75 × 90 × 220 mm, ≤2 kg housing tested to GJB150 vibration and shock standards, it is ideal for artillery fire support, laser-guided munitions and vehicle or shipborne EO/IR platforms.

TECHNICAL SPECIFICATIONS

Functional Characteristics

Provides laser ranging capability

Supports long-cycle laser designator, short-cycle laser designator, and emergency laser designator modes.

Includes built-in fixed frequency codes and supports online coding

Supports receiver detector lockout via command control; the receiver is locked by default at power-on.

Provides product temperature reporting.

Supports both internal trigger and external trigger operating modes.

Supports querying the laser emission count (cumulative count).

Provides energy adjustment capability for product maintenance.

Performance Parameters

Operating wavelength

1064 nm ± 3 nm

Energy (minimum)

≥ 120 mJ

Energy levels

50 mJ, 80 mJ, 120 mJ

Energy ranges per level

l 50–70 mJ

l 80–100 mJ

l ≥ 120 mJ

Energy stability

≤ ±10% per cycle (calculated after 2 s of laser designator)

Effective range (large target)

Laser ranging:

a) ≥ 30 km (conditions: visibility ≥ 45 km, target reflectivity 0.2, relative humidity ≤ 80%)
b) ≥ 20 km (conditions: visibility ≥ 30 km, target reflectivity 0.2, relative humidity ≤ 80%)
c) Minimum ranging distance: ≤ 300 m

Ranging accuracy

± 1 m

Repetition rate

Laser ranging: 1 Hz, 5 Hz

laser designator: 20 Hz

Valid measurement rate

≥ 98%

Pulse width

15 ns ± 5 ns

Beam divergence

≤ 0.15 mrad

Optical axis parallelism

Parallelism between mounting datum plane and optical axis ≤ 0.3 mrad

Operating modes

a) Laser ranging: continuous operation ≥ 10 min, rest 5 min
b) Short-duration laser designator:
Single laser designator duration ≥ 16 s, interval ≤ 9 s,
10 consecutive cycles; interval between major cycles ≤ 15 min
c) Long-durationlaser designator:
Single laser designator duration ≥ 60 s, interval ≤ 60 s,
5 consecutive cycles constitute one major cycle;
interval between major cycles ≤ 30 min
d) Emergency illumination (switching from ranging to laser designator):
Single laser designator duration ≥ 16 s, interval ≤ 9 s,
laser designator can be initiated at any time

Laser designator coding

a) 16 coding patterns
b) Coding accuracy: ± 1 μs
c) Coding range: 45,000 μs – 60,000 μs

Weight Requirements

Total unit weight

≤ 2 kg

Weight consistency

≤ 50 g

Structural Requirements

Overall dimensions

≤ 75 mm (W) × 90 mm (H) × 220 mm (L)

3D digital model requirements

The external model shall be complete and comprehensive, including details such as screws, cable routing, and mating connectors.

Load cable routing shall be included in the model design to avoid interference with the system.

Electrical Interface

DC input

18 V–32 V, typical supply 28 V

Average power consumption

≤ 120 W @ 28 V

Peak power consumption

≤ 200 W @ 28 V

Power-on inrush current

≤ 5 A @ 28 V

Digital ground, power ground, and mechanical housing shall be electrically isolated.

Environmental Adaptability Requirements

Operating Temperature

−40 °C to +60 °C

−40 °C to +60 °C

−45 °C to +65 °C
High-temperature storage: 2 h
Low-temperature storage: 2 h

Vibration

Equipment vibration testing shall be conducted in accordance with MIL-STD-810G, Laboratory Environmental Test Methods for Military Equipment.

Vibration conditions

8.2 Hz – 86.4 Hz: 0.1 g²/Hz

156.4 Hz – 172.8 Hz: 0.025 g²/Hz

234.6 Hz – 259.2 Hz: 0.006 g²/Hz

Other frequency points within 15 Hz – 2000 Hz: acceleration spectral density of 0.004 g²/Hz

Vibration shall be applied along the X, Y, and Z axes, 15 minutes per axis.

Shock

Vertical axis

≥ 20 g

Lateral and longitudinal axes

≥ 15 g

Pulse duration

11 ms

3 axes, 2 directions per axis, 18 shocks in total

Shock testing shall be conducted in accordance with MIL-STD-810G, Laboratory Environmental Test Methods for Military Equipment.

OUTLINE DIMENSION(mm)

LDR

PIN INTERFACE

A standard isolated RS-422 communication interface is provided.

Interface chip model: SMUM2682MP.

A standard isolated CAN 2.0B bus communication interface is provided, with a transmission rate greater than 1 Mbps.

CAN transceiver chip model: SMUM3053MP or ADM3053.

No bus termination resistor is included.

Firmware upgrade can be implemented via the CAN interface (CAN protocol to be defined).

Firmware upgrade can also be implemented via the serial interface.

Laser target designator connector: Receptacle J106-4H14ZKSP-02

Electro-optical platform mating plug: Plug J106-4H14TJSL-01

Connector manufacturer: Guihang

Table 1 — Connector Pin Assignment Description

Pin

Definition

Description

A1

+28 V Input Power

 

A2

+28 V Input Ground

 

4

Designator Serial TX+ (from designator to EO platform +)

 

11

Designator Serial RX− (from EO platform to designator −)

 

9

Designator Serial TX− (from designator to EO platform −)

 

2

Designator Serial RX+ (from EO platform to designator +)

 

8

Designator Serial Ground

 

14

External Sync RS-422 RX+

RS-422 level input

12

External Sync RS-422 RX−

13

External Sync RS-422 GND

5

CAN H

Isolated CAN 2.0B, 1 Mbps, no termination resistor installed

6

CAN L

7

CAN GND

B1

Laser Designation Sync Signal Output TX+

RS-422 level output, active low, pulse width 10 μs

B2

Laser Designation Sync Signal Output TX−

3

Laser Designation Sync Signal Output GND
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ERDI Pre-Sales Notice & Customer Information

OEM / ODM / OBM Services​

ERDI supports full-range customization including:

  • OEM (Original Equipment Manufacturing)– Products manufactured under your brand or part number.
  • ODM (Original Design Manufacturing)– Custom optical or mechanical design based on your specifications.
  • OBM (Original Brand Manufacturing)– Private-label solutions with our in-house R&D and branding support.

We provide technical co-development, logo engraving, packaging customization, and batch production services to meet both small-scale and mass-production requirements.

Global Presence and Trade Reliability​

ERDI has established official stores on leading global platforms including Amazon, Alibaba International Station, and Made-in-China.com, allowing customers worldwide to purchase safely and conveniently. We are a verified and trusted factory, not a reseller, and we ensure that all transactions, quotations, and logistics follow transparent and secure trade practices.

Sample and Lead Time​

To help customers evaluate our products and performance, we offer sample orders for most product categories.

  • Standard samplesare typically delivered within one week after order confirmation.
  • Customized modulesmay require additional processing time depending on design complexity and optical requirements.
    Our logistics team will provide real-time tracking and documentation for every shipment.

Technical Support and Service System​

ERDI maintains technical service centers and distribution partners worldwide, enabling rapid customer response.
We provide:

  • Comprehensive technical consultation and project evaluation
  • One-on-one on-site technical assistanceat the customer’s facility when required
  • Lifetime after-sales supportand technical maintenance guidance

Each laser product is delivered with a full set of user documentation, including Laser Module Usage Precautions and Safety Guidelines.

Quality Assurance and Warranty​

ERDI implements strict multi-stage quality control throughout production:

  • Incoming material inspection
  • Optical alignment verification
  • Output power and wavelength calibration
  • Safety and durability testing under standard conditions

We guarantee that all products leaving our factory meet design and performance specifications.
Except for man-made damage, we will replace any defective unit within one year free of charge and provide lifetime maintenance support thereafter.

For more details, please refer to our After-Sales Service & Warranty Policy.

Communication and Order Confirmation​

To ensure efficient service, please confirm the following before placing an order:

  • Product model, wavelength, output power, and working voltage/current
  • Whether you require custom mechanical dimensions, optical configurations, or driver circuitry.
  • Packaging, labeling, and shipping preferences.
  • Any specific export or compliance documentation needed for your country.

Our sales engineers will provide an official quotation and delivery schedule upon confirmation of all specifications.

After-Sales Service & Warranty Policy

Customer Support

For technical assistance, warranty claims, or safety inquiries, please contact our official service team through the contact information listed onerdicn.com.
Our support engineers will provide professional guidance on installation, alignment, safety, and maintenance procedures.

Product Origin and Quality Assurance​

  • All ERDI products are manufactured directly by the factory, ensuring consistent quality and full traceability.
  • We provide a diverse rangeof laser modules and laser distance measurement modules to suit various industrial, educational, and research applications.
  • Every product is tested and inspectedbefore shipment to guarantee that it meets specification standards.

Return and Exchange Policy​

  • Customers may request a return or exchange within 30 daysof receiving the goods, provided that:
  • The product remains in original condition, unused, and without affecting secondary sales.
  • A valid reason for return or exchangeis provided.
  • Upon approval, we will replace or refund according to our service policy.
  • The buyer is responsible for shipping costsassociated with returns, exchanges, or repairs, based on international freight cost rules.

Warranty Coverage​

  • The main functional componentsof ERDI laser products are covered by a 2-year warranty from the date of purchase, excluding cosmetic appearance.
  • Within the first 12 months, if a verified manufacturing defect occurs, we will replace the item with a brand-new productfree of charge.
  • Replacement of cosmetic or housing components (e.g., enclosure, labeling, or exterior parts) may incur a reasonable cost feebased on material expenses.
  • Warranty does not cover:
  • Damage due to misuse, improper installation, or modification.
  • Operation outside the recommended power supply or temperature range.
  • Accidental or physical damage, including drops, fire, or liquid ingress.

Receiving Inspection​

  • Upon delivery, please inspect the parcel immediately in the presence of the courier.
  • If there is any quantity discrepancy, visible damage, or mismatch, do not signthe delivery receipt.
  • Once the package is signed for (by you, family, or colleagues), it is considered accepted as correct and complete.