Digital Water Testers – pH & TDS/EC Options

Make water checks part of your routine

Monitor your aquarium or hydroponic water with a compact digital tester. Choose the pH or TDS/EC option that matches the readings you need, then view results on the LCD display.

Select the right testing option

• pH tester: Measures how acidic or alkaline a solution is, with a listed measurement range of pH 0–14.
• TDS/EC tester: Provides total dissolved solids (TDS), electrical conductivity (EC), and temperature readings. Includes reading-hold and display-mode functions.
• Check your selection: Available options include single testers and combinations. Functions and package contents depend on the option selected. Do not assume every option contains both meters or measures all parameters.

Using and caring for your tester

Follow the manual supplied with your selected model. Calibrate the pH meter with the appropriate buffer solutions before relying on its readings, and recalibrate as directed. Keep immersion below the marked limit, clean the probe according to the instructions, and replace its protective cap after use.

Before you order

• Batteries are not included. The supplier lists two 1.5V LR44 button cells for the pH tester and one CR2032 battery for the TDS/EC tester. Confirm the requirements for your selected version.
• The supplier lists buffer powders and a manual for the pH option; confirm the contents of your selected package.
• Measurement capabilities vary by tester. A TDS/EC meter does not replace a pH meter.

Important: These readings alone do not establish that water is safe to drink. The meters do not identify every contaminant or detect harmful microorganisms. Use appropriate testing for drinking-water safety.