Showing 25–36 of 96 results

Bubble Magus Digital Color Screen Salinity Meter

$59.99
Options: 1.Giant Colour LCD Show Display 2.Excessive Decision Measurement Studying 3.Precision Measurement Worth 4.Automated Temperature Compensation 5.Water Temperature and TDS

capetsma Salinity Tester, Accurate Sea Hydrometer Aquarium Marine Salinity Meter for Fish Tank Pond Water Saltwater…

$11.99
🐠 Safe Material & Unique Design: Made of durable Acrylic, this Fish Tank Test Kit salinity Hydrometer is designed with an automatic level function. 🐠 Quickly, easily, and accurately measurement: With this hydrometer saltwater aquarium test kit, you can test your marine aquarium's salt level and specific gravity, and It is optimum to be put into below 6" deep water to avoid the error caused by the oil film on the water. 🐠 Higher Accuracy & safe zone indicated: Readings are temperature-corrected & accurate to +/- 0. 001. specific gravity units ranges from 1. 000 - 1. 030 with a safe zone of 1.020-1.023. The outside range of scale indicates salinity ppt, ranges from 0-40, safe zone is 27-31.

Clinical Refractometer with ATC, Tri Scale Serum Protein/Urine Specific Gravity/Refractive Index

$24.90
Make sure this fits by entering your model number. Human clinical refractometer 3-in-1 testing of Serum protein, Urine specific gravity, and Refractive index MEASURING RANGE: Serum protein: 0 ~ 12 g/100 ml ; Urine specific gravity: 1.000 ~ 1.050 ; Refractive index: 1.333 ~1.360 RI

Coralife BioCube Mini Aquarium Hydrometer

Can remain submerged inside your aquarium or sump Know your salinity in a glance Compact design allows for discreet placement in the aquarium

Coralife Deep Six Hydrometer

$14.79
From Coralife. Vary is 1.000 to 1.032. Each unit is calibrated and examined for accuracy utilizing superior testing procedures. With

Coralife Hydrometer

$12.64
Coralife is one of the market’s leading manufacturers of premium aquarium products. Coralife'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 aquariums.

CORISRX BEST OF YOUR LIFESTYLE Dr. Marine Saltwater Marine Aquarium Salinity Portable Refractometer Meter ATC 0~10% Reef

$63.65
This latest salinity refractometer is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the specific gravity and concentration (Parts per Thousand) of salt in water.

Digital Salinity Meter, SA287 Portable Digital Salinity Meter High Salinity Temperature Pen Type Tester for Saltwater…

$50.20
Make sure this fits by entering your model number. WATERPROOF SALINITY METER:It displays the salinity value precisely, compact size and light weight, easy and portable to carry, convenient to use.This instrument can not only detect the salt content of edible salt, salt water pool and koi fish pond, but also the salinity of seawater, marine, salt water fish tank salt level testing. SALINITY TESTER:Digital Salinity Tester for Salt Water.The pen type salinity meter is a instrument for testing the salinity value of a solution.Quick and reliable manner for most regular water solutions' testing.

Digital Salinity Tester for Salt Water – Aquarium Salinity Meter with ATC, IP67 Waterproof, 0-200 PPT Large Range Multi…

$32.99
Make sure this fits by entering your model number. [Large Salinity Range] Ciztada salinity tester has 2 measurement modes, scale range: 0~9999 ppm/10.0~200 ppt and 0.00-25.00%, which is 2 times than the salinity refractometer [Automatic Temperature Compensation] Notice: We recommend waiting for a while to observe the measurement results for more accurate reading. Ciztada salinity tester is equipped with ATC part inside, during normal temperature, once calibrated, the temperature change would never affect the accurate of your measuring result.

Dog and CAT Clinical Refractometer for Blood Serum Protein and Urine Specific Gravity by Magnum Media

$16.50
Make sure this fits by entering your model number. The Clinical refractometers are designed for clinical usage and intended for both Veterinary and Human. Triple scale that gives Urine Specific Gravity(SG.) Total Serum Protein(SP) and Refractive index(RI)

Dual Scale Salinity Refractometer ATC 0-100ppt (0-10%) & 1.000-1.070 Specific Gravity, Portable Meter Tester for…

$21.90
Make sure this fits by entering your model number. Range: 0-100ppt (0-10% Salinity) and Density/ Specific Gravity 1.000-1.070 1ppt Salinity and 0.001 g/cm3 Density Resolutions Water or a salt (brine) refractometer preferred by aquarist, it checks saltwater & brine or salinity of water, best for aquariums and marine monitoring

DXOPHIEX Salinity Tester Hydrometer Specific Gravity Tester for Saltwater Fish Tank Aquarium and Pond

The seawater hydrometer is used to test the salt concentration in the seawater. The compact design makes the mechanical hydrometer easy to carry and use, efficient, accurate and reliable. Easy-to-view reading scale, for most Marine life, the applicable reading is between 1.021 and 1.023. Innovative design with filtering sponge at the inlet to efficiently eliminate the dirt in the marine water.