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HM Digital Testing Equipment

What is Total Dissolved Solids (TDS)?

Source: WQA

The total weight of the solids that are dissolved in the water, give in ppm per unit volume of water. TDS is determined by filtering a given volume of water (usually through a 0.45 micron filter), evaporating it at a defined temperature (usually 103-105 degrees Celsius), and then weighing the residue.

Total Dissolved Solids in Water Graph

TDS Meters

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HM Digital Handheld Digital TDS Meter & Thermometer
HM Digital Handheld Digital TDS Meter & Thermometer
$22.20
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HM Digital Small Handheld Digital TDS Meter & Thermometer
HM Digital Small Handheld Digital TDS Meter & Thermometer
$22.20
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HM Digital Small Handheld TDS Meter w/ Aquarium Packaging
HM Digital Small Handheld TDS Meter w/ Aquarium Packaging
$22.20
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HM Digital Upscale Handheld Digital TDS Meter & Thermometer
HM Digital Upscale Handheld Digital TDS Meter & Thermometer
$25.79
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HM Digital COM-100 Professional Waterproof TDS Meter & Thermometer
HM Digital COM-100 Professional Waterproof TDS Meter & Thermometer
$59.95
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HM Digital Professional Waterproof pH Meter & Thermometer
HM Digital Professional Waterproof pH Meter & Thermometer
$79.95
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HM Digital Professional Waterproof ORP Meter & Thermometer
HM Digital Professional Waterproof ORP Meter & Thermometer
$87.95
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HM Digital Handheld Digital Digital pH Meter
HM Digital Handheld Digital Digital pH Meter
$59.95
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HM Digital Accessories

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pH Buffer Solution Variety Pack
pH Buffer Solution Variety Pack
$10.95
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ORP Buffer Solution and Electrode Test Kit
ORP Buffer Solution and Electrode Test Kit
$18.95
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Reverse Osmosis System TDS Monitors

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HM Digital 1-Stage Inline TDS Monitor
HM Digital 1-Stage Inline TDS Monitor
$29.00
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HM Digital 2-Stage Inline TDS Monitor
HM Digital 2-Stage Inline TDS Monitor
$39.00
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HM Digital Quick Check Monitor
HM Digital Quick Check Monitor
$39.00
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Water Filter Monitors

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5-Stage Inline Monitor (Timer Function Only) w/ Faucet Indicator Light
5-Stage Inline Monitor (Timer Function Only) w/ Faucet Indicator Light
$29.95
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