EC-3 by HM Digital Original is your first step into a simple but meaningful measurement technology to check your water quality. Highly efficient and accurate due to advanced microprocessor technology.

The device measures the electrical conductivity (EC) value and temperature in your water. You can use this to determine whether, for example, your reverse osmosis system is working properly. Incl. Case with belt clip.

Hold function: Saves measurements for convenient readings and recordings. Automatic shut-off function for long battery life. The device switches off automatically after 10 minutes if it is not in use.

Technical data

Ideal for all water filter systems, water management, aquariums and hydroponics. Excellent for both consumer and commercial use. To take with you on Allen occasions.


Notes on battery disposal. You can return old batteries that we have or have had in our range as new batteries free of charge to our shipping warehouse (shipping address). The symbols shown on the batteries have the following meaning: The symbol of the crossed out garbage can means that the battery must not be disposed of with household waste. Pb = battery contains more than 0.004 percent lead by mass, Cd = battery contains more than 0.002 percent cadmium by mass, Hg = battery contains more than 0.0005 percent mercury by mass. Please note this note.
EC-3 by HM Digital Original is your first step into a simple but meaningful measurement technology to check your water quality. Highly efficient and accurate due to advanced microprocessor technology. The device measures the electrical conductivity (EC) value and temperature in your water. You can use this to determine whether, for example, your reverse osmosis system is working properly. Incl. Case with belt clip. Notes on battery disposal. You can return old batteries that we have or have had in our range as new batteries free of charge to our shipping warehouse (shipping address). The symbols shown on the batteries have the following meaning: The symbol of the crossed out garbage can means that the battery must not be disposed of with household waste. Pb = battery contains more than 0.