The D-D True Seawater Refractometer is a handheld instrument designed to measure the true salinity and specific gravity of sea water by refractive index. Unlike standard saltwater refractometers, which are calibrated for brine solutions, this device is specifically calibrated for natural seawater (NSW), providing accurate readings without the need for conversion factors. The refractometer features an advanced auto temperature compensation mechanism with a copper internal body that conducts heat faster and more efficiently than aluminum or plastic models, ensuring precise measurements.
| SKU | 251827 |
| Manuals | Product Manual |
| Aquarium Type | Saltwater |
Price History
D-D True Seawater Refractometer
by D-D The Aquarium Solution
Controllers
Reference reading: Species guide on Codexery
Species guides on Codexery
- Pseudochromis springeri — Scientific name: Pseudochromis springeri · Distribution: Red Sea and eastern Indian Ocean source
- Sharknose goby — Scientific name: Elacatinus evelynae · Maximum size: 4 cm source
1 retailer · 1 in stock
Compare Prices
Prices and availability change; we are not paid by these stores.
Active Deals
15% off True Seawater Refractometer
On sale for $59.49 (regular $69.99)
All-time low price on True Seawater Refractometer
New lowest price: $59.49 (previous low: $69.99)
15% price drop on True Seawater Refractometer
Price dropped from $69.99 to $59.49
More in Controllers
Pinpoint pH Calibration Fluid
PINPOINT pH High Precision Calibration Fluid Inc.
American Marine
Milwaukee pH Calibration Fluid - Single Use Packet
Milwaukee Instruments
KH keeper Plus Mixing Pill
Reef Factory
Pinpoint ORP Calibration Fluid
PINPOINT ORP (Redox) 400 Calibration Fluid Inc.
American Marine
More from D-D The Aquarium Solution
You Might Also Need
Calibration Fluid
Single HI70024P 35ppt Salinity Calibration Sachet
Hanna Instruments
35 ppt Salinity Calibration Solution Pack HI70024P (Single Pack) - Hanna Instruments
Hanna Instruments
HI70031P 1413 20 ml (Single Pack) - Hanna Instruments
Hanna Instruments
pH 4.01 Calibration Buffer 20 ml (Single Pack) - Hanna Instruments
Hanna Instruments
pH 7.01 Calibration Buffer 20 ml (Single Pack) - Hanna Instruments
Hanna Instruments