User Guide

Thank you for choosing the Health Metric 3-in-1 TDS & EC Meter 2.0. This professional
measuring device makes testing for total dissolved solids (TDS), electrical conductivity (EC), and
temperature super easy.
The following guide gives you a brief overview of what is TDS, how TDS meters work, where can
they be used, and how to take care of your TDS meter. For more information and helpful video
instructions, visit www.health-metric.com/tds2.
Should you have any questions, feel free to get in touch. We are here to help!
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Contents
 What is TDS?
 How TDS meters work
 Why is the TDS important?
 TDS and tap water
 What TDS level is normal?
 TDS and water filters
 How to test the TDS of tap water
 How to test bottled water
 TDS and aquariums
 Testing TDS in aquarium water
 TDS in pools and spas
 Measuring pool salt levels
 TDS and electrical conductivity in hydroponics
 Caring for your Health Metric TDS meter
 When to calibrate your meter?
 Get in touch