All lead test kits require practice ... An XRF gun isn’t the best choice for some surfaces. And if you get positive results, you should follow up with a lab test. XRF screening costs about ...

And finally, even the best DIY kits are not very comprehensive ... Again, we think DIY lead-test kits are an excellent value, and if lead is your only worry, they are a quick and inexpensive ...

How We Found the Best Well Water Test Kits When looking ... Some tests simply aren’t strong enough to test for particulates ...