Various Applications: Mars Hydro pH and TDS Meter Combo includes a pH meter, TDS meter, three pH calibration buffers, and a user manual. It can be used for a variety of applications, such as testing data in hydroponics, aquariums, drinking water, pools, and other liquids, providing quickly stabilized readings.

Accuracy and Measurement Range: The pH meter measures a range of 0-14 with an accuracy of 0.01, while the TDS meter reads three different data with an accuracy of 2%. The measurement ranges for TDS are 0-9990 ppm, EC is 0-9990 μs/cm, and temperature is 0.1-80.0 ℃ or 32.0-176.0 ℉.

User-Friendly Features: The pH and TDS meters have user-friendly features such as a lightweight body for portability, an LCD screen with backlighting for easy reading in dark environments, and automatic temperature compensation for accurate readings at different temperatures. The “Hold” buttons lock readings for easy checking and recording, and both meters turn off automatically after 2 minutes of non-use to avoid battery waste.

Provide Accurate Data: Mars Hydro TDS meter can switch between four display modes, allowing growers to access the exact data they want. The combo also includes three pH calibration buffers, and a detailed tutorial in the user manual to help growers calibrate the pH meter when necessary.

Notice: To use the meters correctly, avoid water or solutions above the immersion line, clean the meters with distilled water, and put on the protective cap after use. The pH and TDS meter readings stabilize quickly within 5 seconds, but it may take 3 to 5 minutes to read TDS in pure water. There is no need to calibrate the meters too often, as they are already calibrated before packaging.