Review on Efficient Digital Temperature Control for Hydroponics, Aquariums, and Drinking Water by Brandon Show

This pen tests your water PPM pen for hydroponics aquarium TDS water tester. The 3-in-1 digital water tester TDS meter accurately and quickly checks the heavy metal content, soluble salt content and temperature of the water, which are displayed on the screen in ppm (parts per million). This laboratory mutometer can test water anywhere. Get the purest drinking water. Just stick it in about 1 inch of water and you'll get a reading. The TDS Water Tester is a rugged model that comes in a protective carrying case with a belt clip. Equipped with a high-quality titanium alloy probe, the TDS measurement range is 0-9999ppm with an accuracy of ±2%. Checking water quality can protect children, the elderly and pregnant women's health. And it is also used in hydroponics, pools and spas, aquariums, hydroponics, etc. TDS = Total Dissolved Solids, which is any salt, metal or mineral in water. The lower the TDS content in the water, the more efficiently your body cells can use the water. Conversely, higher TDS levels may indicate that the body is having a harder time using water that contains more contaminants that can pose health risks. This is a quality product and I give it 4 stars.