MT252 J1939 OBD diagnostic tool
Standalone OBD tool for heavy machinery

Do you own a small diesel workshop or repairing your machines yourself? Then this tool is definitely for you! 

With special functions which only expensive OBD tools master, we have made a lightweight updatable OBD tool capable of diagnosis and run vehicle specific functions!
Did you ever had issue with Emission derate as Diesel Particulate filter cleaning, or DEF system periodically causing engine derate? Then this tool is definitely for you!

Meet the MT252

Simple OBD diagnostic unit for multi brand diagnose

1: Full standalone unit
2: Robust design that widthstand everyday use
4: Multibrand diagnosis and special functions
4: In-house software development
5: Over the air Wi-Fi updates for new functions
6: Today over 50 units in-field beta tested
7: Support for almost all OBD connectors

 

 

 

System design

1. Hard polymer case designed for long term durability.
2. 3.5 inch color display and mechanical buttons for menu navigation
3. Dual-core 310Mhz computing unit
4. DB25 OBD connector, compatible with all Dimsport NG Cables!
5. Autodetection of 250kbit/s and 500kbit/s extended 29bit CAN systems. 
6. Capable of communicating with CAN bus based agricultural, Construction or Industrial machinery. 
7. Genetic mode according to SAE J1939, which is supported by many brands
8. Wi-Fi online updates for new special functions!
 


Software overview

Protocols are developed all the time.
Contact MadsTech for latest vehicle support list.
Some of the protocols are:

Genetic mode according SAE J1939

Case/New Holland/Claas FPT

JCB Delphi DCM3.3+

John Deere phoenix L03 - L34

OTA - OverTheAir updates

MT252 tool has built-in Wi-Fi for online updates. The computing unit is future prof for having capacity for over 50 protocols of different vehicle manufacturers.

OTA updates is a licensed function, which must be enabled by MadsTech. The unit has several flash drives, used for software rollback support, and recovery Wi-Fi mode to secure stable performance

Want to know more about MT252 TractorTestingTool?

Soon to be released on Webshop!

Machine Safety

and documentation according to European Conformity
CE marking 

All MadsTech products are in conformity with CE regulatives

Documentation

User manual included, describing use and safety!

Regulation

Full conformity with ISO standards 

© Copyright 2026 MadsTech ApS - All Rights Reserved