Box of 10 HM Digital AquaPro TDS - Handheld Drinking Water Quality TDS Testers

Buy in bulk and save for residential homes, condos, offices or to give as a gift at your next corporate event. Always know what's in your drinking water...before you drink it! Some companies call them pens (they don’t write) and others call them testers, but essentially they are handheld instruments that offer the user a portable quick spot check device especially great for testing drinking water anywhere, anytime. There are many TDS meters on the market but many aren't precise or reliable, HM Digital is 100% reliable all of the time. We found that the HM Digital’s handhelds are the most consistent, easy-to-use TDS meters on the market that you can depend on. They also have a magnet on the back to place on your refrigerator to never lose them. Do you know what's in your water? Know the quality of your drinking water in parts per million (ppm) Test water anywhere, anytime. Know when you need to replace filters in your water purifier. Learn more about TDS, water contaminants and purit