Hm Digital

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    …independent timers * Monitors up to 5 stages * Timer counts down in month or days * Volumizer counts up in gallons or liters * Digital display * Easy installation   Features: * A five-stage filter monitor with five independent timers. * The…

    $39.99 Regular Price: $

    …calibration with digital fine tuning * Includes 4 pH buffer solution in a sponge embedded in a clear cap * Waterproof housing (IP-67 rating) * Simultaneous temperature display * Measurement Range: 0-14 pH * Digital automatic calibration (one point), with digital fine tuning *…

    $79.99 Regular Price: $

    …then how your DI is performing by removing all remaining TDS from the final product water.   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…

    $29.99 Regular Price: $

    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: $

    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…

    $69.99 Regular Price: $

    …  Electrical Conductivity readings in water are a great way to measure the purity, or the concentration of a solution. The HM Digital DM-2EC is great for almost all water filtration systems, especially Reverse Osmosis Deionization systems where two points of readings…

    $59.95 Regular Price: $

    …Low battery alert * Fail-safe low power auto-off * High frequency alarm * Mesh pre-filter The Leak Block Sensor from HM Digital includes an electronic sensing pad and a latching solenoid valve that will close if the sensing pad ever comes in contact with water. They can be…

    $53.00 Regular Price: $

    …dissolved 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 …

    $76.95 Regular Price: $

    The DM-2 Commercial Dual Inline TDS Meter from HM Digital has a stronger water resistant casing than the DM-1. This tool monitors the TDS of your reverse osmosis system in two places and lets you know exactly how the system is performing. DM-2 features include: * Especially designed…

    $45.99 Regular Price: $

    …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 accessories. This tool uses electrode probes to monitor the TDS of your reverse osmosis system in…

    $44.99 Regular Price: $

    …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" GA…

    $24.99 Regular Price: $

    NaCl calibration solution, available in 342 ppm. Comes in lightweight HDPE plastic bottles. Sealed with a coated foam liner.

    $7.99 Regular Price: $

    …Tubing * ¼" Push Connect Fittings   Add deionization stages to your current RO system or upgrade your RO/DI system. The HM Digital DM-1 Dual TDS Meter lets you see the quality of water you are producing at multiple points throughout the DI Stages.    …

    $99.99 Regular Price: $

    …¼" Push Connect Fittings   Add deionization stages to your current RO system or upgrade your RO/DI system. The HM Digital DM-1 Dual TDS Meter lets you see the quality of water you are producing at multiple points throughout the DI Stages.    All…

    $64.99 Regular Price: $

    Dual deionization add-on canister kit complete with HM Digital Dual Inline TDS Meter! Just choose your favorite DI resin to put inside. We suggest using our Pro Series Anion and Pro Series Mixed Bed Cation resins for the ultimate Phosphate, Silica, and Carbon Dioxide elimination system! Add it to…

    $64.99 Regular Price: $

    …(and most other RODI systems) to a BRS 4 Stage Value Plus RODI system.   Kit Contains: * Dual Inline TDS Meter DM-1 - HM Digital * Glycerin Filled Pressure Gauge 1-100 PSI * 550 mL Flow Membrane Flush Valve   Glycerin Filled Pressure Gauge 1-100…

    $59.99 Regular Price: $

    …(and most other RODI systems) to a BRS 4 Stage Value Plus RODI system.   Kit Contains: * Dual Inline TDS Meter DM-1 - HM Digital * Glycerin Filled Pressure Gauge 1-100 PSI * 800 mL Flow Membrane Flush Valve   Glycerin Filled Pressure Gauge 1-100…

    $59.99 Regular Price: $

    Perfect for reefers that use a lot of DI resin! Triple Deionization Saver canister kit complete with HM Digital Triple Inline TDS Meter! Just add DI resin. We suggest using BRS Pro Series Single Bed Cation Resin, Pro Series Single Bed Anion Resin, and Pro Series Mixed Bed Cation Color…

    $89.99 Regular Price: $

    Includes BRS PRO DI Resins! Triple Deionization Saver canister kit complete with HM Digital Triple Inline TDS Meter & BRS Pro Series Single Bed Cation Resin, Pro Series Single Bed Anion Resin, and Pro Series Mixed Bed Cation Color Changing Resins. This is the perfect add-on to any…

    $125.99 Regular Price: $

    …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…

    $289.99 Regular Price: $

    …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…

    $299.99 Regular Price: $

    …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…

    $339.99 Regular Price: $

    …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…

    $359.99 Regular Price: $

    …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…

    $214.99 Regular Price: $

    …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,…

    $339.99 Regular Price: $

    …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,…

    $349.99 Regular Price: $

    …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,…

    $389.99 Regular Price: $

    …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,…

    $409.99 Regular Price: $

    …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…

    $264.99 Regular Price: $

    …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…

    $274.99 Regular Price: $

    …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…

    $314.99 Regular Price: $

    …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…

    $334.99 Regular Price: $
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