PEN METER ST20C-C
After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in a line of pen meters that provide accurate measurement of pH, oxidation-reduction potential (ORP), conductivity, salinity, and total dissolved solids (TDS). Starter pen meters are the economical option when you are simply looking for meters that will provide accurate measurement without restriction.
| Meter Type | Conductivity |
| Measurement Range | 0.00 – 19.99 ms/cm; 0.0 – 99.0 °C |
| ± 1.5% / ± 0.5 °C | |
| Measurement Resolution | 10 μs/cm |
| Display | LCD |
| ATC | Yes |
| Temperature Compensation | Automatic |
| Accuracy ± (Temperature) | 0.5 °C |
| Automatic Shutdown | Yes, After 6 minutes of non-use |
| Battery Life | 200 Hours with Disposable Batteries |
| Calibration | 1 Point |
| Conductivity accuracy (±) | 1.5 % |
| Conductivity measuring range | 0.00 – 19.99 mS/cm |
| Dimensions (LxW) | 7.28 in x 1.5 in x 1.77 in (185 mm x 38 mm x 45 mm) |
| Measurement Range (Temperature) | 0 °C – 99 °C |
| Net Weight | 3.88 oz (110 g) |
| Number of Buttons | 3 |
| Power | 4 AG13 Batteries (Included) |
| Protection Rating | IP67 |
| Temperature Display | Yes |
| Temperature Range | 0 °C – 99 °C |
| Temperature Sensor | 50 KΩ NTC |
| Working Environment | 50°F – 104°F, 85%RH, non-condensing (10°C – 40°C, 85%RH, non-condensing) |
| Wrist Strap | Yes |
Item Number
Data Sheet_StarterPenMeters_(EN) Click Here
Manual_ST20C/20T/20S_(EN) Click Here
WARNING: California Residents - Proposition 65 Click Here









