TDS Meter

Regularly testing your water is the most reliable way to verify the water running through your espresso machine is within a safe range. This TDS (Total Dissolved Solids) meter from Third Wave Water measures the mineral content in your water, giving you an accurate reading in seconds. High TDS levels lead to troublesome scale buildup inside your machine over time—catching problems early protects your equipment and your espresso quality.

Key Features

• Measures total dissolved solids (TDS) in parts per million (ppm)
• Easy-to-read digital display for instant results
• Compact, portable design—test at the tap or anywhere
• Reliable accuracy for ongoing water monitoring
• Helps determine if additional filtration or softening is necessary

While this meter measures mineral content rather than total hardness, it's an essential diagnostic tool for any home barista. Pair it with Clive's water filtration solutions and our Coffee School: Water 101 course with Third Wave Water to build a complete understanding of how water impacts your espresso.

Home espresso is a big investment, and we want you to be 100% in love with your new setup. That's why we offer 30 days to return your machine if it's not the right fit. While return shipping and a small restocking fee are your responsibility (unless there's an issue with the machine, in which case we'll cover everything), we'll make sure the rest of the process is smooth and simple.

In-stock items ship within 1-business day.

Free shipping on orders over $75. To be eligible for free shipping, the final order amount, after applying any discounts, including rewards points, must exceed $75.

Returns are accepted up to 30 days from the date the order was delivered. Smallware items must be unused. Open Box and Certified Pre-Owned are non-returnable.