Product Description
Aquarists, aquaculture operators and field technicians can check salinity in seconds without batteries or recalibrating between sites. This optical refractometer reads 0 to 100 ppt and compensates automatically between 10 and 30°C, so it can move from the lab to outdoor tanks and ponds without re-zeroing. Its large, high-contrast scale helps different users get the same result.
This listing is for catalog number 43036: Handheld Refractometer, STX-3, 0 to 100 ppt Salinity, ATC. Apply a drop of water to the optical glass prism, close the plate and read salinity through the eyepiece; readings are referenced to 20°C. The prism is housed in metal for quick temperature equilibrium, a rubber grip blocks hand heat and a non-roll stand keeps the unit put. A zippered case, transfer pipette and instruction manual come with each refractometer. Add it to your LIGHT LABS order and keep your lab stocked.
Key Features
- 0 to 100 ppt salinity scale – Covers fresh, brackish and seawater samples.
- Automatic temperature compensation – Corrects readings from 10 to 30°C to a 20°C reference.
- Large, sharp scale – High contrast for easy, repeatable readings.
- Metal-housed glass prism – Reaches temperature equilibrium with the sample quickly.
- Rugged handheld build – Rubber grip, non-roll stand and a five-year warranty.
Specifications
| Catalog Number | 43036 |
| Brand | Heathrow Scientific |
| Description | Handheld Refractometer, STX-3, 0 to 100 ppt Salinity, ATC |
| Color | Silver/Green |
| Sold As | Each |
| Measurement | Salinity |
| Range | 0 to 100 ppt |
| Temperature compensation | Automatic, 10 to 30°C, referenced to 20°C |
| Prism | Optical glass in all-metal housing |
| Maximum sample temperature | 90°C (194°F) |
| Body | Rubber grip with non-roll stand |
| Included | Zippered vinyl carrying case, plastic transfer pipette, instruction manual |
| Warranty | 5 years |
Applications
- Saltwater aquarium monitoring
- Aquaculture and fish farming
- Marine and estuary field sampling
- Environmental science teaching
