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.
INCAL is Cummins' distribution of ECM calibration files — the official calibration images and metadata used by INSITE (and Calterm) to reprogram Cummins electronic engines. Delivered as periodic releases, an INCAL package contains the approved calibrations for supported engine families, allowing technicians to update an ECM to a newer or corrected calibration during service. It is not a diagnostic interface itself but the calibration library the Cummins tools draw from. Correct INCAL access is required to flash genuine Cummins calibrations and to apply engineering (ECFG) updates to Cummins ECMs.
Jaltest OHW (Truck & Off-Highway Diagnostic, Cojali (Jaltest)) and Cummins Incal (Truck & Off-Highway Diagnostic, Cummins) 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 Cummins INCAL calibration file packages for ECM reflashing
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.
See SoftechproMore on Jaltest OHW