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DM1 HM Digital TDS meter two probes dual
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DM1 HM Digital Dual TDS Meter is a meter for continuous measurement of TDS (total dissolved solids in water) in RO filter systems. Two Read moreShow less
DM1 HM Digital Dual TDS Meter is a meter for continuous measurement of TDS (total dissolved solids in water) in RO filter systems. Two probes allow for monitoring values at the inlet and outlet (in/out switch). The reading range is 0-9990 ppm, with results above 999 ppm displaying the notation [x10] on the screen. The set includes cables, probes, and 1/4 inch tees with John Guest quick connectors.
Specifications
TDS-81
- Measured parameter
- TDS
- Measurement range
- 0–9990 ppm
- Product type
- Water tester / meter
- Test method
- Electronic meter
Description
DM1 HM Digital is a dual TDS meter with two probes, designed for continuous water quality monitoring in RO systems. It works well wherever reverse osmosis, an osmotic filter, or another water filtration system requires a quick comparison of parameters at the inlet and outlet. With an in/out switch, probes mounted on 1/4-inch tubing, and John Guest quick-connect fittings, the device makes it easy to assess water treatment performance on an ongoing basis without complicated installation.
Dual TDS measurement in one device
HM Digital DM1 is used to measure the total amount of dissolved substances in water, i.e. TDS. It is a practical solution for installations where quick and continuous monitoring of contamination levels and the performance of a water filter matters.
The meter is designed for installation on RO filters and allows water control at two measuring points. Two probes make it possible to compare TDS values before and after filtration, which is especially useful in installations such as a reverse osmosis filter or a complete reverse osmosis system.
The reading range is from 0 to 9990 ppm. For results above 999 ppm, the display shows the [x10] indication, which makes correct interpretation of the measurement easier at higher values.
Main features and benefits
- The meter is equipped with an in/out switch for selecting the current TDS reading location.
- The set includes cables, probes, and tees for connection to 1/4-inch standard tubing, typical of home water filters.
- To save battery power, the device turns off automatically after 10 minutes of inactivity.
- The sensors are placed in tees with John Guest quick-connect fittings, allowing water hoses to be connected instantly without the need for additional sealing.
- The Dual TDS Meter is mounted using two adhesive Velcro pads, so both installation and removal are quick and hassle-free.
- After disconnecting the tees, the TDS meter can be used as a standard portable meter, i.e. a single TDS-Meter.
Practical use in RO systems
The dual TDS meter helps you continuously track the difference between the water entering the system and the water after filtration. In everyday use, this means more convenient monitoring of membrane performance and the entire water treatment system.
The device is especially useful in home systems where the water filter operates continuously and quick information about changes in water quality is needed. Thanks to the two probes, there is no need to move a single sensor between measuring points.
The meter shows the TDS level, i.e. the total amount of dissolved substances in water. It is a convenient control tool for RO systems, but a proper assessment of the system’s condition should also take into account regular cartridge replacement and the current operation of the device.
Installation and everyday use
DM1 has been designed for quick connection to standard 1/4-inch tubing used in home installations. The tees with John Guest quick-connect fittings allow the device to be easily integrated into the system without additional sealing of the connections.
The meter body itself can be conveniently mounted with adhesive Velcro pads. This solution makes not only installation easier, but also later removal, relocation of the device, or temporary disconnection from the system.
After disconnecting the tees, the device can also work as a standard portable TDS meter, which increases its versatility in home use.
Set contents
- dual TDS Meter with in/out switch
- two installed batteries
- two sensors on 62 cm cables
- two tees with John Guest quick-connect fittings
- instruction manual
- packaging
Dimensions
- 7.6 cm
- 2 cm
- 4.7 cm
Additional important information
- 7.6 cm
- 2 cm
- 4.7 cm
Technical specifications
| Device type | Dual TDS meter with two probes |
|---|---|
| Application | Continuous TDS measurement in RO filter systems |
| Measurement range | 0 - 9990 ppm |
| Reading for results above 999 ppm | [x10] indication on the display |
| Accuracy in the 0 - 999 ppm range | 1 ppm |
| Accuracy in the 1000 - 9990 ppm range | 10 ppm |
| Error tolerance | +/- 2% |
| Power supply | 2 x 1.5V |
| Sensor cable length | 62 cm |
| Compatible tubing standard | 1/4 inch |
| Fittings | John Guest |
| Automatic shut-off | After 10 minutes of inactivity |
| Dimensions | 7.6 cm x 2 cm x 4.7 cm |
Questions
What is the HM Digital DM1 TDS meter used for?
The device is used to measure the total amount of dissolved substances in water. It allows continuous monitoring of TDS levels in RO systems and comparison of values at two measuring points.
Why does the meter have two probes?
The two probes allow water quality to be checked at the system inlet and outlet. This makes it possible to quickly assess the performance of the filtration system without moving a single sensor.
What does the in/out switch mean?
The in/out switch is used to select the location of the current TDS reading. The user can easily switch between the first and second probe.
Does the meter fit standard home installations?
Yes, the set includes components for connection to 1/4-inch standard tubing, which is typical for many home water filters and reverse osmosis systems.
Is additional sealing required for installation?
No, the sensors are placed in tees with John Guest quick-connect fittings, which allow hoses to be connected quickly without the need for additional sealing.
How should a reading above 999 ppm be interpreted?
For results above 999 ppm, the display shows the [x10] indication. This means the result should be read according to that multiplier.
Does the device turn off automatically?
Yes, to save energy the meter turns off automatically after 10 minutes of inactivity.
Can DM1 HM Digital TDS meter two probes dual be used as a portable meter?
Yes, after disconnecting the tees the device can be used like a standard portable TDS meter, i.e. in single TDS-Meter mode.
What is included in the set?
The set includes: a dual TDS Meter with in/out switch, two installed batteries, two sensors on 62 cm cables, two tees with John Guest quick-connect fittings, instruction manual, and packaging.
Warte uwagi
Urządzenia działa bez zarzutów wszystkie pomiary są zgodne.