You could have downloaded ProDiagnostics 2.1.1 from our software library for free. The following versions: 2.1 and 2.0 were the most frequently downloaded ones by the program users. This free software is an intellectual property of HVAC-Pro. ProDiagnostics.exe is the most frequent filename for this program's installer. The program belongs to Education Tools.
From the developer:
ProDiagnostics software is a free interactive HVAC Training Program with 50 diagnostic problems both HCFC-22 and HFC-410a.
The software also comes with an introduction to Superheat & Sub-cooling, common metering devices, a printable pressure/temperature chart and field worksheets.
You may want to check out more software, such as SimulationExams.com A+ Essentials Exams, TestKing Q and A - VMware VCP-310 or PrepLogic CompTIA Security+, which might be related to ProDiagnostics.