Testing temp during walkthrough - what do inspectors use?

I have this digital thermometer: https://www.amazon.com/ThermoPro-TP50-Digital-Thermometer-Temperature/dp/B01H1R0K68/ref=sr_1_3?dchild=1&keywords=room+temp+check&qid=1598668196&sr=8-3

But it's not subtle or quick or able to measure water temp as well as temp for ac and heat throughout the house. Any inspectors in the house who want to share what they use or if maybe this one is okay? https://www.amazon.com/Infrared-Thermometer-Helect-Non-Contact-Temperature/dp/B071NBJJ2Q/ref=sr_1_25?dchild=1&keywords=room+temp+check&qid=1598668196&sr=8-25

submitted by /u/ToughQuirk
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source https://www.reddit.com/r/RealEstate/comments/iiksbe/testing_temp_during_walkthrough_what_do/