plasticImportedThis TDS tester is ideal for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silverATC (Automatic Temperature Compensation)Advanced microprocessor technologyThe Sleek design of the TDS-4 is perfect for personal or commercial useAlkaline batteries includedHold Function: Freeze the measurement to view it out of the water.Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries

Product Description

Product Description

Product Description: How Pure is Your Water?A TDS meter (aka ppm pen, nutrient tester, tds stick) is an inexpensive and convenient digital tool to instantly check your overall water quality.TDS = Total Dissolved Solids, which is any salt, metal or mineral in the water.With the push of a button, the TDS-4 can tell you your overall water purity level, which will be displayed on the screen in ppm (parts per million).The lower the TDS level, the purer the water, with 0 ppm being pure H2O.The TDS-4 is great for checking your tap water quality, or knowing when to change a filter.(The meter does not test for biological contaminants.)The TDS-4 is a great tool for drinking water, water filtration and purification, hydroponics (test your nutrients), colloidal silver, aquariums, RO/DI systems, pools and spas, and more.

From the Manufacturer

TDS Tester with Advanced Microprocessor Technology.