This TDS tester is ideal for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver
ATC (Automatic Temperature Compensation)
The Sleek design of the TDS-4 is perfect for personal or commercial use
Advanced microprocessor technology
Hold 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