CountryBoy19

I need the A/C refrigerant pressure switch for my truck (actually my 05 Yukon XL), it's the low pressure one located on the dryer. It seems the terminology of the high pressure and low pressure switches isn't being used consistently across vendors and I'm confused which one is being sold by various vendors. Some are calling it a pressure switch, some are calling it a compressor cycling switch, some call it the AC clutch switch. One vendor says part xyz fits my application but another vendor says it doesn't. I'm at a loss. Why can't they just call it the low-pressure sensor and high-pressure sensor? What is the proper terminology for each sensor. Can anybody tell me which ones will work on my 05 Yukon XL?