CIZTADA Digital Salinity Tester and 56.2mS/cm(35.0 ppt) Calibration Solution Combo for Saltwater Pool, Seawater, Aquarium, Fish Tank

YINMIK Aquarium pH Salt Meter & Replaceable pH Probe

Aquarium Salinity pH Meter,Digital Salt Tester Kit for Saltwater Fish pH Meter Calibration Solution Kit,Includes pH 7.00, 10.01 and pH Electrode Protection Solution

DUAL SCALES - Saltwater aquarium refractometer measures on specific gravity 1.000-1.070 and parts per thousand 0~100‰ (1‰=1ppt=1000ppm), get the result in two different units by one test WIDELY APPIICATION -...

ORAPXI Professional Hydrogen water tester is a great tool for anyone who needs to monitor multiple water quality parameters at once. It is particularly useful for monitoring hydrogen water bottles...

In hydroponic systems, the pH and EC levels of the nutrient solution play a critical role in plant growth. ORAPXI pH PPM meter closely monitors pH and EC values while...

CIZTADA Salinity Tester and 4 in 1 Hydrogen Water Tester, Digital Pool Salt Tester for Saltwater Pool and pH H2 ORP Meter for Drinking Water, Hydroponic, Aquariums

Fluval Sea Hydrometer provides an accurate and convenient method of measuring specific gravity and salt level in marine aquariums. Regular testing is strongly recommended as stable salinity levels are essential...

Features: For Salt Water / Marine Aquariums. Easy to use. Measure both Temperature and Specific Gravity of the water. Green indicators are for ideal range of water temperature and specific...

Floating design: The hydrometer floats in any corner of the fish tank, providing automatic temperature and testing Accurate readings: The hydrometer provides accurate readings of the specific gravity and temperature...

About this item 【AUTOUTLET Salinity Refractometer】This salinity tester is used to measure salinity of brine/seawater, monitor and control the concentration of saltwater. Ideal for aquariums and marine applications. 【Measures on...

Measure salt water or salinity of water, ideal for aquariums and marine monitoring. Measures on 2 scales, Specific Gravity (D 20/20) and parts per thousand. Features automatic temperature compensation. Comes...

MEASURES ON 2 SCALES - Aquarium Refractometer features specific gravity (D20/20) 1.000-1.070 and parts per thousand 0~100‰ , allow to get two results in different units by one test WIDELY...

Cora life's Hydrometer takes a true water sample at six inch depth. Easy to read and accurate, this specific gravity meter is designed to give temperature-corrected readings in warm water...

🐟Marine hydrometer: Tests salinity and specific gravity in marine aquariums to help maintain a healthy tank 🐟Easy to Read & Use: Simply dunk in aquarium to fill with water, then...

Safe Material:Made of plastic,aquarium clear Automatic Accurate Readable SaltWater Hydrometer. Durable Clear Acrylic:Accurate, durable, and easy to read your marine aquarium's salt level and specific gravity,Small and waterproof.if the specific...