Okay. They sell these for less than a hundred dollars. I would not recommend getting one for $20.00 because they are not accurate but you don't need the $300.00 meters unless you are going to do a lot of this testing.
Let me know if you need more info or what you find.
Also, you may ask around to your friends as I am sure someone has one in your circle of friends.
Wednesday, August 12th, 2020 AT 6:19 PM