Diagnostic tools

[redroc]

I'm allways looking for new tools to help me diagnos ac/systems. I'm a newbee in this feild I've just graduated from tech school. My question was if there were any new tools that have came out recently that were not a waiste of money and made refrigerant problems easier to diagnos?

[terogew]

I looking for the same, I don't want to spend a lot looking I would like to hear from someone that has the software.