Tool comparison
Jaltest OHW is Cojali's diagnostic platform for off-highway equipment — construction, material handling, industrial engines, stationary and specialty machinery — covering a wide range of manufacturers with one tool and interface. It reads and clears DTCs, displays live data, runs actuator activations, calibrations, parameter settings, aftertreatment regenerations and ECU configuration across engine, hydraulic, transmission and electrical systems. Plant and equipment workshops use Jaltest OHW to service mixed fleets without separate brand tools, supported by Jaltest's technical data, wiring diagrams and guided diagnostics for listed machines, making it a practical single platform for diverse off-highory equipment.
Cat ET (Caterpillar Electronic Technician) is Caterpillar's official service software for its electronically controlled engines and machines. Connected through a Cat Communication Adapter (III), it reads and clears diagnostic and event codes, displays and logs live parameters, runs diagnostic tests and calibrations, adjusts configurable parameters, performs flash programming of Cat ECMs (with WinFlash), and reviews service and trip data. Cat dealers, fleets and equipment shops use ET across on-highway trucks, construction, mining, marine and power systems. It is the standard tool for Caterpillar engine and machine diagnostics and reprogramming where genuine OEM access is required.
Jaltest OHW (Truck & Off-Highway Diagnostic, Cojali (Jaltest)) and Caterpillar ET (Truck & Off-Highway Diagnostic, Caterpillar) compete in the same space, so the choice comes down to coverage, workflow and price for your specific ECUs. Jaltest multi-brand diagnostics for off-highway and construction machinery Caterpillar Electronic Technician, the OEM tool for Cat engines/machines
Whichever you flash with, Softechpro Solutions auto-applies DPF/EGR/AdBlue/DTC-off modules and Stage patterns with automatic checksum correction across ~1,400 firmwares on Windows & macOS — the fast way to get the actual file edits done.
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