Industrial electrical diagnostics

Sensor Test
Box Kits

Built for the job, not built down to a price.

Safe, accessible test points between an equipment wiring harness and the connected sensor, switch, solenoid or other electrical component.

MiningEarthmovingConstructionIndustrial

Purpose-built diagnostic access

Test the circuit.
Protect the connection.

The ACCER Maintenance Sensor Test Box system is designed for diagnostic work on mining, earthmoving, construction and industrial equipment—not passenger vehicles.

It gives technicians practical access to a live circuit while helping avoid pierced insulation, damaged seals and spread terminals.

Complete ACCER Sensor Test Box kit arranged in its protective case
Representative kit photo. Current Rev 4 contents are listed below.
ACCER Sensor Test Box connected on heavy equipment with a multimeter displaying 25.32 volts
Live inline voltage measurement on working heavy equipment.

How it works

Connect inline.
Measure with confidence.

An appropriate adaptor harness connects between the equipment wiring harness and the sensor, switch, solenoid or other component.

Standard 4 mm connections make it straightforward to connect a multimeter, oscilloscope or process meter while the original connector remains intact.

HarnessTest boxComponent

Proven in the field

Real equipment.
Useful access.

The main test box and potentiometer simulator provide practical connection points where technicians actually need them—on the machine, during live diagnostic work.

ACCER main Sensor Test Box connected to a multimeter on heavy equipment
Main Sensor Test Box connected during live circuit measurement.
ACCER Sensor Test Box and M12 breakout adaptor testing a 4 to 20 milliamp pressure transducer
4–20 mA pressure transducer testing using the M12 breakout adaptor and Sensor Test Box.
ACCER potentiometer simulator connected on heavy equipment
Potentiometer simulator connected for controlled resistance simulation.

Field demonstrations

See the system
in use.

Short demonstrations of inline measurement and controlled sensor simulation on working heavy equipment.

M12 current testing

Inline current testing with the ACCER Sensor Test Box on heavy equipment.

M12 voltage testing

Practical voltage access through the M12 inline adaptor and standard 4 mm test points.

Coolant temperature sensor simulation

AM-STB-1201 resistance simulation demonstrated at the machine gauge.

Hydraulic temperature sensor simulation

Controlled resistance simulation for hydraulic temperature diagnostics.

Build a system for your work

Kit components

Select individual modules or use the quote form to define a complete kit around your equipment and diagnostic needs.

AM-STB-1002 — Basic Kit

Carry case, main test box, potentiometer simulator, banana lead kit and SG-003A signal generator. Adaptor harnesses are ordered separately.

AM-STB-1001 — Deluxe Kit

All Basic Kit contents plus AM-STB-3001, the complete collection of every currently active adaptor harness.

AM-STB-1003 — Mining & Hydraulic Workshop Kit

Basic Kit with M12 4-pin, Deutsch DT 2-way, Deutsch DT 3-way, AMPSEAL 16 3-way and DIN 43650 Form A adaptor kits. Connector suitability is confirmed before supply.

AM-STB-1101 — Main Sensor Test Box

Four-circuit inline breakout and isolation test box with accessible 4 mm connections.

AM-STB-1201 — Potentiometer Simulator

Variable-resistance sensor simulation module.

AM-STB-2001 — Banana Lead Kit

Colour-coded 4 mm diagnostic test leads.

SG-003A — Signal Generator

Portable current, voltage, frequency and PWM signal generator.

AM-STB-3001 — Complete Adaptor Kit

Complete collection of all currently active I/O harness adaptor kits.

Adaptor harnesses

The right connection for the equipment.

Adaptor harnesses extend the system across a mixed equipment fleet without compromising original connectors.

Range of ACCER adaptor harness connectors
Representative adaptor range. Custom builds are available.

General and industrial

  • AM-STB-3101 — M12 A-Code 4-Pin
  • AM-STB-3102 — Deutsch DT 2-Way
  • AM-STB-3103 — Deutsch DT 3-Way Pressure Sensor
  • AM-STB-3104 — AMPSEAL 16 3-Way Sensor
  • AM-STB-3106 — DIN 43650 Form A Solenoid Valve

Hitachi equipment and sensors

  • AM-STB-3105 — Hitachi Deutsch DTM 3-Way Contamination Sensor
  • AM-STB-3201 — Hitachi EJ2 3-Way Pressure Sensor
  • AM-STB-3202 — Hitachi JFC / JFC-LP 2-Way Sensor / Solenoid
  • AM-STB-3203 — Hitachi RV 3-Way Pressure Sensor
  • AM-STB-3204 — Hitachi UFO 2-Way Pressure Sensor / Solenoid
  • AM-STB-3205 — Hitachi Yazaki Z-Type 2-Way Grey
  • AM-STB-3206 — Hitachi Yazaki Z-Type 3-Way Grey
  • AM-STB-3207 — Hitachi Yazaki RV03FB 3-Way
  • AM-STB-3208 — Hitachi TE EJ3PF 3-Way
  • AM-STB-3209 — Hitachi Sumitomo 6189-0094 2-Way Pressure Switch
  • AM-STB-3212 — Hitachi Sumitomo 6189-0031 2-Way Solenoid
  • AM-STB-3213 — Hitachi TE 174352-2 2-Way Solenoid
  • AM-STB-3214 — Hitachi Delphi 12162197 2-Way Temperature Sensor
  • AM-STB-3215 — Hitachi Mitsubishi C06FW 6-Way Temperature Sensor

O&K / Terex

  • AM-STB-3301 — O&K / Terex Bedia Hydraulic Oil Level Sensor
  • AM-STB-3302 — O&K / Terex PMS Hydraulic Oil Sensor
  • AM-STB-3303 — O&K / Terex BCS Pressure / Temperature Sensor

Application notes identify known uses and do not guarantee compatibility with every machine or component revision. ACCER confirms connector family, gender, keying and circuit suitability before quoting.

ACCER manufactured

Built for the job,
not built down to a price.

Components are selected for dependable connections, durability and serviceability—not simply the lowest manufacturing cost.

Each ACCER-manufactured test box and adaptor harness is assembled, labelled and tested before supply.

Plan your kit

Tell us what you work on.

Use the build and quote request form, or contact ACCER Maintenance to discuss equipment-specific requirements.