HM DIGITALPremier Water Testing InstrumentsINDIAFind a distributor Monitors
Fixed monitoring instruments for RO systems, treatment equipment and process applications. Select a model for specifications, applications and local support.
models available in this category

HM-500
HM Digital’s HydroMaster (HM-500) is the most versatile continuous monitor, indicating pH, EC/TDS & Temp °C/°F providing accurate, stable readings the user can rely on. This unit can be wall mounted, is portable due to its rechargeable battery, and can be used as a benchtop monitor with its stand.
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HM-200
The HM-200 is a versatile portable pH/EC/TDS/Temp monitor ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more.
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HM-100
The HM-100 is a pH/EC/TDS/Temp monitor ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more.
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DM-2
The DM-2 is a commercial-grade monitor measuring TDS feed (input) water vs. product (output) water of a water filtration system at any time. With its shielded cables and diagnostic messaging this robust device is ideal for Reverse Osmosis (RO), Deionized water (DI) filtration systems that work well in applications such as drinking or potable water, Water treatment, Aquariums, Hydroponics, and many more.
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DM-2EC
The DM-2EC is a commercial-grade monitor measuring ELECTRICAL CONDUCTIVITY feed (input) water vs. product (output) water of a water filtration system at any time. With its shielded cables and diagnostic messaging this robust device is ideal for Reverse Osmosis (RO), Deionized water (DI) filtration systems that work well in applications such as industrial water filtration systems for car washes, window washing, manufacturing, and food processing.
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DM-3
The DM-3 is a commercial-grade EC/TDS monitor measuring EC/TDS feed (input) water vs. product (output) water of a water filtration system at any time. DM-3 has a large backlit screen that you will be able to see the readings in dark environments. With its shielded cables and diagnostic messaging this robust device is ideal for Reverse Osmosis (RO), Deionized water (DI) filtration systems that work well in applications such as drinking or potable water, Water treatment, Aquariums, Hydroponics, and many more
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SM-1
The SM-1 is provides an easy to read single line TDS monitor that provides a digital readout. It is ideal for any water filtration system, including reverse osmosis systems, coolers and much more.
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SM-1EC
The SM-1EC provides an easy to read single line EC monitor that provides a digital readout. It is ideal for any water filtration system, including reverse osmosis systems, coolers and much more.
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TRM-1
The TRM-1 is a unique monitor offering the user 3 points of contact during the filtration process. This TDS monitor allows for checking TDS levels at 3 points, such as with DI/RO (deionization / reverse osmosis), multiple points in an RO system, and more.
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FLM-3
The FLM-3 is a consumer flow meter perfect for under-the-sink monitoring of the flow that has passed through your filtration (RO/DI) system.
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LDM-100R
This dual commercial grade monitor gives the user the “In-put” water (Line 1) and “Out-put” water (Line 2) in addition to the % rejection number of how much TDS is being rejected.
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LSM-100
With its extra-large screen, the LSM-1 is an ideal EC/TDS monitor for a commercial or industrial setting.
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