DIGITAL SEA WATER REFRACTOMETER

The DR-202 Digital Refractometer is a fast, accurate, and easy-to-use instrument designed for measuring the salinity of seawater.

Ideal for marine aquariums, reef aquariums, aquaculture, laboratories, and water quality monitoring, it provides reliable digital measurements in just 2 seconds at the touch of a button.

Unlike traditional optical refractometers, the DR-202 features a large digital LCD display, eliminating reading errors and making measurements quick and effortless.

Simply place a few drops of water on the stainless steel prism and obtain accurate results instantly.

Equipped with Automatic Temperature Compensation (ATC), the refractometer automatically compensates for sample temperatures between 0°C and 40°C, ensuring consistent and accurate measurements without manual adjustments.

Features

• Fast digital measurement in just 2 seconds

• Large, easy-to-read LCD display

• High-precision digital sensor

• Automatic Temperature Compensation (ATC)

• IP65 waterproof protection

• Compact, lightweight, and portable design

• Easy one-button calibration

• Requires only a 0.2 ml sample volume

• Ideal for marine aquariums, reef aquariums, aquaculture, and laboratory applications

Measurement Functions

Salinity: 0.0–28.0%

Salinity (‰): 0–100‰
Specific Gravity: 1.000–1.070

Refractive Index: 1.3330–1.3530 nD

Resolution

Salinity: 0.1%

Salinity (‰): 1‰
Specific Gravity: 0.001

Refractive Index: 0.0001 nD

Accuracy

Salinity: ±0.2%
Salinity (‰): ±2‰

Specific Gravity: ±0.002
Refractive Index: ±0.0003 nD

Technical Specifications: Measurement Temperature: 0–40°C (ATC), Operating Temperature: 0–40°C, Sample Volume: >0.2 ml, Measurement Time: 2 seconds, Protection Rating: IP65, Power Supply: 1 × AAA battery, Dimensions: 58 × 25 × 121 mm, Weight: 90 g (without battery)

Package Includes: Digital Refractometer DR-202, Protective storage case, Cleaning cloth, User manual