---
product_id: 329444350
title: "NAZUSA RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function"
brand: "rz mask"
price: "$68"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/329444350-nazusa-rz-aquariums-salinity-refractometer-for-seawater-marine-fish-keeping
store_origin: NZ
region: New Zealand
---

# Dual scale precision (0-100ppt & 1.000-1.070 SG) Automatic Temperature Compensation (ATC) Durable aluminum & ABS rubber body NAZUSA RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function

**Brand:** rz mask
**Price:** $68
**Availability:** ✅ In Stock

## Summary

> 🌊 Master your marine world with precision and style!

## Quick Answers

- **What is this?** NAZUSA RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function by rz mask
- **How much does it cost?** $68 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/329444350-nazusa-rz-aquariums-salinity-refractometer-for-seawater-marine-fish-keeping)

## Best For

- rz mask enthusiasts

## Why This Product

- Trusted rz mask brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Operation:** Simple 2-3 drop sample method with clear optical eyepiece reading—ditch the guesswork of traditional hydrometers.
- • **Portable & Ready for Action:** Lightweight 260g design with protective hard case and essential tools included for on-the-go marine monitoring.
- • **Precision at Your Fingertips:** Dual-scale measurement for specific gravity and salinity ensures pinpoint accuracy for your marine ecosystem.
- • **Temperature-Adjusted Accuracy:** ATC function automatically compensates for temperature variations, delivering reliable readings every time.
- • **Built to Last, Designed to Perform:** Robust aluminum body with ABS rubber grip offers durability and comfort during use.

## Overview

The NAZUSA RZ Aquariums Salinity Refractometer is a professional-grade tool designed for marine fish-keeping and saltwater monitoring. Featuring dual scales for specific gravity (1.000-1.070) and salinity (0-100ppt), it incorporates automatic temperature compensation for accurate readings. Built with a durable aluminum and ABS rubber body, it is lightweight, portable, and comes with a protective case and accessories, making it an essential device for aquarium enthusiasts seeking reliable and easy-to-use salinity measurement.

## Description

NAZUSA RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function

## Features

- Measures on 2 Scales: Aquariums refractometer features Specific Gravity (D 20/20) 1.000-1.070sg and parts per thousand 0-100PPT (1‰=1ppt=1000ppm)
- Seawater refractometer measures saltwater or salinity of water, ideal for aquarium, marine monitoring, fish-keeping,salty pools&spas and etc.
- ATC Function: salty water refractometer with automatic temperature compensation, allow you obtain accurate readings easier and faster
- Salinity Refractometer is made of aluminum body and ABS rubber light and very sturdy, comes with a hard plastic case, a mini screwdriver, a dropper
- Easy to Use: put 2-3 drops on the saltwater’s prism, towards light then to get the accurate readings through the optic eyepiece, ideal for replacement the poor quality and difficult to read hydrometer refractometer

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 10.08 x 13.3 x 2.72 cm; 260 g |
| Breed Recommendation | Small, Medium Breeds |
| Color | black and silver |
| Quantity | 1 |
| Special Features | Lightweight, Portable |
| batteries required | No |
| Batteries Included | No |
| Item Weight | 260 g |

## Product Details

- **Theme:** Animals
- **Breed recommendation:** Small, Medium Breeds
- **Brand:** RZ Mask
- **Recommended uses for product:** water
- **Indoor/outdoor use:** Indoor

## Images

![NAZUSA RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function - Image 1](https://m.media-amazon.com/images/I/61+iqLr-knL.jpg)
![NAZUSA RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function - Image 2](https://m.media-amazon.com/images/I/61IGU+0Az-L.jpg)
![NAZUSA RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function - Image 3](https://m.media-amazon.com/images/I/612NVJK8JWL.jpg)
![NAZUSA RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function - Image 4](https://m.media-amazon.com/images/I/71f71h1fohL.jpg)
![NAZUSA RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function - Image 5](https://m.media-amazon.com/images/I/71XN0i-cYwL.jpg)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-25*