Tachometers can be a very useful tool out in the field to check RPMs (rotations per minute) on motor shafts during troubleshooting or commissioning. Also, check your set ups...whether it be leak testing, evacuation or other to ensure the process goes smooth.
Save 8% on your tool purchase at trutechtools.com with promo code knowitall at check out.
Save on Testo at trutechtools.com with link below. https://docs.google.com/forms/d/e/1FAIpQLSeOC8oQB97trj6XKDWRylM2ILFlnVjYG1GnTT2lRWT8-K4weQ/viewform
Testo 470 https://www.testo.com/en-US/testo-470/p/0563-0470
Visit https://www.hvacknowitall.com for tips and articles.
Check out the HVAC Know It All YouTube channel. https://www.youtube.com/channel/UC-MsPg9zbyneDX2qurAqoNQ/videos