Brand Name
Water Quality Monitors/Controllers
DS & pDS Meters™
TDS/Conductivity and pH Testing Instruments
Readings You Can Count On
No water supply is completely pure. Every industrial, commercial, or natural source contains dissolved solids or salts. These impurities contribute to scale, corrosion, poor taste, and environmental pollution that endanger animal and plant life.
Myron L® Company has two proven ways to measure such impurities. Our DS Meters™ provide fast, accurate, on-the-spot measurements of total dissolved solids (TDS) or conductivity. pDS Meters™ test conductivity or TDS, plus pH. Readings from their highly stable circuitry help assure product quality, prevent equipment damage and verify in-line instrumentation in a wide range of applications.
Reliability Built In
Breakage is one of the major causes of sensor failure in a typical pH or conductivity instrument. Myron L® instruments provide maximum protection for both the pH and conductivity electrodes inside the cell cup. The user-replaceable pH electrode features a chemical-resistant, porous liquid junction.
Unique Field-Tested Design
Our unique, durable, field-tested design has evolved over more than 55 years, making Myron L® instruments among the most reliable and popular of their kind in the world. They’re lightweight and compact, yet Myron L®’s DS and pDS Meters are also tough, with rugged, taut-band meter movements. Put our meters to the test. Even after years of rough field service, they’ll surpass your expectations of accuracy, reliability and simplicity.
Accurate Readings in 3 Easy Steps:
- Rinse and fill cell cup
- Select Conductivity/TDS range
- Push button to indicate reading
DS/pDS Meters™ Specifications:
| Ranges: Conductivity
pH |
1, 3, 4 or 5 depending on model, 2-12 pH (pDS Meters only)
(See meters table) |
| Readout: | 2½ in. taut-band shock resistant meter |
| Units of Measure* | Choice of parts per million (ppm) TDS or micromhos (µM)/microsiemens (µS) conductivity |
| Accuracy: Conductivity
pH |
±2% full scale
±0.2 pH units |
| Repeatability | ±1% |
| Temperature Compensation |
Automatic (to 25°C/77ºF) for conductivity samples between 10-71°C/50-160°F |
| Calibration
Controls |
Conductivity
pH Zero and pH Gain |
| Electrodes (built-in) | Conductivity: Never need replatinizing pH: KCl gel-filled, field replaceable |
| Cell Cup | Chip and crack resistant polyethylene |
| Circuitry | Very stable; requires minimal recalibration |
| Power | One 9 volt battery supplied;
Battery Life: >2000 tests/1 year |
| Dimensions | 3.4 W x 4.5 D x 4.0 H in./
86 W x 114 D x 102 H mm |
| Weight | 1 lb./0,45 kg |
*1 µM (micromho) = 1 µS (microsiemen)
DS Meters™:
| Model | 512T4* | 512M5* | 512T5* | 512T10* | 532M1* | 532T1* | 532T2* | EP-10 | EP |
| Range(s) | 0-2500 | 0-5000 | 0-5000 | 0-10,000 | 0-50
0-500 0-5000 |
0-50
0-500 0-5000 |
0-25
0-250 0-2500 |
0-10
0-100 0-1000 0-10000 |
0-0.5
0-5 0-50 0-500 0-5000 |
| Units Measured | ppm** | µM | ppm | ppm** | µM | ppm | ppm | µM | µM, MΩ |
| Recommended NIST Standard Solution Key |
F | G | G | O | B,D,G | B,D,G | A,C,F | K,M,O | B,D,G |
pDS Meters™:
| Model | T6/PH* | T2/PH* | EP11/PH |
| Range(s) | 2-12 pH
0-5000 |
2-12 pH
0-50 0-500 0-5000 |
2-12 pH
0-10 0-100 0-1000 0-10000 |
| Units Measured | pH, ppm | pH, ppm | pH, µM |
| Recommended NIST Standard Solution Key |
G | B,D,G | K,M,O |
* These models feature the Internal Standard for easy field conductivity calibration and range doubling.
** Also available in micromhos.
DS/pDS Meters™ Applications: Boilers & cooling towers Deionization Reverse osmosis Chemical concentrations Printing fountain solutions Swimming pools & spas Water pollution control Wastewater
© 2025 Dinec All Rights Reserved.