Digital Meter

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    The TDS-3 Handheld TDS Meter from HM Digital is a useful tool to spot check the TDS of your home water supply or RO/DI unit output. This unit features a digital display, built in thermometer, and comes with a carrying case. As with all HM-Digital products, the TDS-3 comes factory calibrated.

    $24.99 Regular Price: $

    …TDS Meter Preinstalled Metering Locations Sensor 1 - Incoming water to DI stage Sensor 2 - After DI stage 2 and before DI stage 3* Sensor 3 - Final output from DI stage 3 Dimensions- 15.25" x 6.25" x 14" What's Included? 1x Triple Deionization Canister Assembly 1x HM Digital TRM-1 Triple TDS Meter 5…

    $89.99 Regular Price: $

    …will usually suggest installing the triple TDS meter post source water, post membrane and post DI stage. These three readings will notify you when it's time to change the RO membrane and DI resin. The TRM-1 Triple Inline TDS Meter from HM Digital is one of the most essential reverse osmosis…

    $44.99 Regular Price: $

    …fittings 10 Ft Each of 1/4" Blue, Red and Black Tubing Pre-installed NSF Certified Filters PLUS RO/DI System Included Upgrades HM Digital Inline Triple TDS Meter- Instantly know the purity of your water, before it enters the deionization system, after the single bed resins, and then your final…

    $389.99 Regular Price: $
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    …fittings 10 Ft Each of 1/4" Blue, Red and Black Tubing Pre-installed NSF Certified Filters PLUS RO/DI System Included Upgrades HM Digital Inline Triple TDS Meter- Instantly know the purity of your water, before it enters the deionization system, after the single bed resins, and then your final…

    $339.99 Regular Price: $
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    …with less resin. Triple TDS Meter Preinstalled Metering Locations Sensor 1 - Incoming water into the DI canister Sensor 2 - Final output from the DI canister Dimensions -14" x 6" x 5.5" What's Included? 1x Single Deionization Canister Assembly 1x HM Digital DM-1 Dual TDS Meter 5 Feet Blue RO Tubing

    $64.99 Regular Price: $

    …a more accurate alternative to chemical test kits, the HI780 marine pH meter provides quick, accurate results in a few easy steps. Features Easier to use and more accurate than chemical test kits Large, easy to read digits Auto shut-off Dedicated to a single parameter Designed to work with HANNA's…

    $49.95 Regular Price: $

    Meter Preinstalled Metering Locations Sensor 1 - Incoming water to DI stage Sensor 2 - After DI stage 2 and before DI stage 3* Sensor 3 - Final output from DI stage 3 Dimensions- 15.25" x 6.25" x 14" What's Included? 1x Triple Deionization Canister Assembly 3x Refillable DI Cartridges 1x HM Digital

    $125.99 Regular Price: $
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    …with the easy to use Mur-lok push-connect fittings that allow you to make leak-free connections. PLUS RO/DI System Included Upgrades HM Digital Inline Dual TDS Meter- Instantly know the purity of your water, before and after the deionization stage. The inline probes come pre-installed and with the…

    $274.99 Regular Price: $
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    …with the easy to use Mur-lok push-connect fittings that allow you to make leak-free connections. PLUS RO/DI System Included Upgrades HM Digital Inline Dual TDS Meter- Instantly know the purity of your water, before and after the deionization stage. The inline probes come pre-installed and with the…

    $314.99 Regular Price: $
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    …with the easy to use Mur-lok push-connect fittings that allow you to make leak-free connections. PLUS RO/DI System Included Upgrades HM Digital Inline Dual TDS Meter- Instantly know the purity of your water, before and after the deionization stage. The inline probes come pre-installed and with the…

    $334.99 Regular Price: $
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    …Range: 0-14 pH Digital automatic calibration (one point), with digital fine tuning Auto-off function, data-hold function, and low-battery indicator Display: large and easy-to-read LCD screen includes simultaneous temperature reading Factory Calibrated: The PH-200 meter is three-point factory…

    $79.99 Regular Price: $

    …as the second stage. Dual TDS Meter Preinstalled Metering Locations Sensor 1 - Incoming water to DI stage 1 Sensor 2 - Final output from DI stage 2 Dimensions - 10" x 6.25" x 14" What's Included? 1x Dual Deionization Canister Assembly 1x HM Digital DM-1 Dual TDS Meter 5 Feet Blue RO Tubing What's…

    $64.99 Regular Price: $

    Quickly and accurately get a digital readout of the salinity and temperature of your aquarium water. Seawater contains a variety of elements that will contribute to the overall specific gravity of the water. Many digital salinity meters are calibrated to read a sodium chloride only or brine solution…

    $69.99 Regular Price: $

    …with Digital Display Driver Heatsink is Optimized for the Pump Integrated Pre-Programmed Flow Modes Rotatable Volute & Removable Base Water Resistant Cable Connections Ideal for Commercial Applications 10-Year Warranty Two Models Available: A200 IPU Controllable Pump with 3 Meter Cord A200…

    $2,199.99 Regular Price: $
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    …and DI resin. This unit features a digital display and comes with two 1/4" GA Murdock Quick Connect Tee's with double o-rings to ensure a proper seal. As with all HM-Digital products, the DM-2 comes factory calibrated. The DM-2 is an upgrade to the DM-1 TDS Meter: TDS Meter Installation Instructions

    $45.99 Regular Price: $

    Meter: The DM-1 Dual Inline TDS Meter from HM Digital is one of the most important reverse osmosis accessories. This tool monitors the TDS of your reverse osmosis system in two places and lets you know exactly how the system is performing. BulkReefSupply.com suggests installing the dual TDS meter

    $59.99 Regular Price: $
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    …connected to city water we offer a variety of RO/DI systems that will fit your aquarium's needs. PLUS RO/DI System Included Upgrades HM Digital Inline Dual TDS Meter - Instantly know the purity of your water, before and after the deionization stage. The inline probes come pre-installed and with the…

    $289.99 Regular Price: $
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    …connected to city water we offer a variety of RO/DI systems that will fit your aquarium's needs. PLUS RO/DI System Included Upgrades HM Digital Inline Dual TDS Meter - Instantly know the purity of your water, before and after the deionization stage. The inline probes come pre-installed and with the…

    $339.99 Regular Price: $
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    …fittings 10 Ft Each of 1/4" Blue, Red and Black Tubing Pre-installed NSF Certified Filters PLUS RO/DI System Included Upgrades HM Digital Inline Triple TDS Meter- Instantly know the purity of your water, before it enters the deionization system, after the single bed resins, and then your final…

    $349.99 Regular Price: $
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    …fittings 10 Ft Each of 1/4" Blue, Red and Black Tubing Pre-installed NSF Certified Filters PLUS RO/DI System Included Upgrades HM Digital Inline Triple TDS Meter- Instantly know the purity of your water, before it enters the deionization system, after the single bed resins, and then your final…

    $409.99 Regular Price: $
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    …with the easy to use Mur-lok push-connect fittings that allow you to make leak-free connections. PLUS RO/DI System Included Upgrades HM Digital Inline Dual TDS Meter- Instantly know the purity of your water, before and after the deionization stage. The inline probes come pre-installed and with the…

    $264.99 Regular Price: $
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    …with Digital Display Driver Heatsink is Optimized for the Pump Integrated Pre-Programmed Flow Modes Rotatable Volute & Removable Base Water Resistant Cable Connections Ideal for Commercial Applications 10-Year Warranty Two Models Available: A400 IPU Controllable Pump with 3 Meter Cord A400…

    $2,849.99 Regular Price: $
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    …connected to city water we offer a variety of RO/DI systems that will fit your aquarium's needs. PLUS RO/DI System Included Upgrades HM Digital Inline Dual TDS Meter - Instantly know the purity of your water, before and after the deionization stage. The inline probes come pre-installed and with the…

    $299.99 Regular Price: $
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    …connected to city water we offer a variety of RO/DI systems that will fit your aquarium's needs. PLUS RO/DI System Included Upgrades HM Digital Inline Dual TDS Meter - Instantly know the purity of your water, before and after the deionization stage. The inline probes come pre-installed and with the…

    $359.99 Regular Price: $
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    Meter to test the overall output, it is really hard to guess if the light is too dim or intense. We highly suggest using a PAR Meter to test the output of your lights at different points throughout your tank that you can use to tune the lights output or know where to put specific corals. PAR METER

    $349.00 Regular Price: $

    …solids, and temperature with the HM Digital COM-100 Waterproof Meter. Automatic Temperature Compensation (ATC) IP-67 Waterproof Housing Large LCD Screen Auto-Off Low-Battery Indicator Digital Calibration Factory Calibration Conductivity Meters are ideal for many different water applications…

    $76.95 Regular Price: $

    …The DM-1 Dual Inline TDS Meter from HM Digital is one of the most important reverse osmosis accessories. This tool monitors the TDS of your reverse osmosis system in two places and lets you know exactly how the system is performing. BRS suggests: installing the dual TDS meter post membrane and post…

    $29.99 Regular Price: $

    The SM-1 Single Inline TDS Meter from HM Digital measures the TDS of a single water line. This is a great tool to monitor the TDS of your reverse osmosis system. Common monitoring locations include pre-system, post membrane or post DI stage. This unit features a digital display and comes with a 1/4"…

    $24.99 Regular Price: $

    …quality water with less resin. Dual TDS Meter Preinstalled Metering Locations Sensor 1 - Incoming water to DI stage Sensor 2 - Final output from DI stage 2 Dimensions -10" x 6.25" x 14" What's Included? 1x Dual Deionization Canister Assembly 1x HM Digital DM-1 Dual TDS Meter 5 Feet Blue RO Tubing

    $99.99 Regular Price: $

    …fittings (model SP-3, included) Digital Calibration: Digitally factory calibrated to 1413 µS. Re-calibration can be done separately for each line. Power source: 2 x AA batteries (included) Battery life: Approx. 2 years What’s Included? 1x DM-2EC Meter 2x ¼” Push Connect Tee…

    $59.95 Regular Price: $

    Meter: The DM-1 Dual Inline TDS Meter from HM Digital is one of the most important reverse osmosis accessories. This tool monitors the TDS of your reverse osmosis system in two places and lets you know exactly how the system is performing. BulkReefSupply.com suggests installing the dual TDS meter

    $59.99 Regular Price: $