L4A
Truck/Bus Cluster

L4A

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Indication Instruments’ L4A Instrument Cluster combines four precision gauges with a 5-inch monochrome display, providing reliable vehicle monitoring, diagnostics, and warnings. With CAN Bus, multiple inputs, and audio alerts, it is built for demanding commercial, agricultural, construction, mining, and off-highway applications.

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L4A
Overview

Overview of the L4A

The L4A Instrument Cluster gives structured vehicle data through analogue gauges plus a central digital display. Essential operating values stay on the dials; warnings and extra parameters stay on the 5-inch EBN panel. The design meets contemporary vehicle electronics and monitoring needs while keeping the durability expected of a heavy duty instrument cluster. CAN integration links the unit to ECUs; the monochrome display cluster keeps information readable in high ambient light. Compared with the H4A Instrument Cluster, L4A is the single-CAN four-gauge layout with 5 analogue inputs. Compared with the 5 Gauge CAN Cluster, L4A uses four gauges and a 5-inch EBN screen instead of five gauges and a segmented LCD. Indication Instruments produces the L4A as an all-in-one vehicle instrument cluster for machines that need analogue clarity and digital alerts.
CAN2.0B
5"SIZE
TPMS
!Alert Message
Stepper Gauge×4
BOOTLOADER
DMS
ReversePolarity
Dual FuelTank
Analog Input
Multi ToneBuzzer
EMCCOMPLIANT

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Specifications

Technical Specifications

Core hardware, I/O, interface, and operating parameters for L4A.
01

Gauges

4 Sonceboz stepper motor driven gauges

02

Inputs

24 Digital Inputs, 5 Analog Inputs

03

Display

100 mm × 75 mm Monochrome EBN Type 5

04

Warning

Multitone Buzzer

05

Connectors

32-pin & 26-pin TE connectors

06

Protection

Water & Dust Protection (ISO 9000 Part 16)

07

Communication

1 CAN 2.0B channel

08

Software Update

UDS Boot Loader

Features

Features of our L4A

Hardware, interface, and protection capabilities built into the L4A.
  1. 01

    Four Sonceboz stepper-motor gauges

  2. 02

    5-inch monochrome EBN display

  3. 03

    Single CAN communication channel

  4. 04

    24 digital input channels

  5. 05

    5 analogue input channels

  6. 06

    Multi-tone warning buzzer

  7. 07

    UDS boot-loader software updates

  8. 08

    Plug-and-play TE connector architecture

  9. 09

    Reverse-polarity protection

  10. 10

    EMC-compliant design

  11. 11

    Clear analogue-plus-LCD operator interface

  12. 12

    Durable construction for demanding environments

  13. 13

    Water and dust protection compliant

  14. 14

    Suitable for commercial and off-highway vehicles

Types

Types of L4A Instrument Cluster Features Offered

  1. 01

    Indication Instruments produces the L4A as an all-in-one vehicle instrument cluster for machines that need analogue clarity and digital alerts.

  2. 02

    Four Sonceboz stepper-motor gauges give smooth, precise readings of primary parameters. The 5-inch monochrome EBN LCD organises data, alerts, and system information without colour clutter.

  3. 03

    A single CAN communication channel integrates the cluster into the vehicle network, including J1939 instrument cluster use where the ECU set requires it. Twenty-four digital inputs and five analogue inputs cover switches, sensors, and discrete machine states. A multi-tone buzzer provides audible warnings.

  4. 04

    Firmware can be updated with a UDS boot loader, so improvements can ship without a hardware swap. Plug-and-play TE connectors, reverse-polarity protection, and EMC-compliant design shorten install and support off-highway vehicle cluster duty.

Applications

Applications of L4A Instrument Cluster

  1. 01

    Commercial vehicles and trucks

  2. 02

    Agricultural machinery

  3. 03

    Construction equipment

  4. 04

    Off-highway and off-road machines

  5. 05

    Fleet dashboard programmes

  6. 06

    Platforms that need a CAN Bus instrument cluster or J1939 instrument cluster

Why Us

Why Choose Indication Instruments for L4A?

Backed by decades of Tier-1 OEM engineering excellence, rigorous test standards, and specialized precision manufacturing.
01

Proven stepper gauges plus a wide monochrome display cluster

02

High vehicle-monitoring input count

03

Robust CAN network integration

04

Built-in audible warnings

05

Field updates via UDS boot loader

06

Plug-and-play TE connector install

07

Durable heavy duty instrument cluster construction

08

Indication Instruments / Veethree vehicle-electronics support

FAQ

Frequently Asked Questions

The L4A is built for commercial vehicles, agricultural machinery, construction equipment, mining vehicles, and other off-highway applications that need a rugged OEM cluster.

It has four Sonceboz stepper motor-driven gauges and a 100 mm × 75 mm (approx. 5-inch) monochrome EBN Type 5 display for readings, warnings, and diagnostics.

It accepts 24 digital and 5 analog inputs and uses a single CAN 2.0B channel for integration with the vehicle’s electronic systems.

Yes. Software can be updated through the integrated UDS Boot Loader without changing hardware.

It uses plug-and-play 32-pin and 26-pin TE connectors. The cluster is built for harsh environments with water and dust protection, EMC compliance, and reverse polarity protection. A multi-tone buzzer provides audible warnings.

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L4A documentation

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