PCE-DRS 1 is a handheld digital sodium chloride (NaCl) refractometer used to determine the salinity or salt content (%, ‰), specific gravity (SG) and refractive index (nD) of liquid. This waterproof IP65-rated digital refractometer features automatic temperature compensation (ATC) from +10 ... +40 °C / +50 ... +104 °F, as well as a large, easy-to-read LCD that shows both the measured value and the temperature.
 

- Measurement parameters:
- Salt content, refractive index, specific gravity, temperature
- Measurement range: 0 ... 280 ‰ salinity
- Resolution: 01 ‰ 
- Accuracy: ±2 ‰
- Automatic temperature compensation (ATC)