AUTOUTLET Brix Refractometer with ATC Digital LCD Display Dual Scale Brix 0~32% & Wort Specific Gravity 1.000~1.130 for Beer Wine Fruit Juice Sugar Homebrew B07CCH49DY 【Brix Refractometer】This Handhe..

Handheld Salinity Meter 0-100% Dual Scale 1.0 to 1.070 S.G. Sodium Chloride Concentration,Aquarium Marine Monitoring Saltwater Testing B0B4G1FBH2 【DUAL SCALE】:Saltwater Refractometer measures on speci..

Akozon Seawater Salinity Meter Aquarium Optics Refractometer Temperature ATC Digital 0-10% B0B2WV9FZP 0 to 10% salinity, 0.01% scale.Soft and flexible eyepiece for added comfort. Adjust the focus b..

Marine Aquarium densitometer Hydrometer seawater Salinity Meter B081Z6GYCB The product has a total length of 21 cm The gauge range for measuring the specific gravity of seawater is 1.000-1.060. S..

HEEPDD Fish Tank Hydrometer Accurate Sea Hydrometer Saltwater Salinity Meter Specific Gravity TestHD-T-H008 B0B1JC41FV Design Feature---0‑40 degrees (1.000‑1.030). If the salinity ppt is between 32‑40..

Jeanoko Salinity Refractometer Durable Salinity Tester Lightweight with Screwdriver for Aquarium for Food Industry B0B4HQYLDM The handheld refractometer is easy to use and can measure the salinity qu..

High Accuracy Salinity Meter ppm Meter with Automatic Temperature Compensation for Saltwater Aquarium and Seawater B08Q3Z9PT3 Ideal salinity meter for measuring salt water and seawater Range: Salin..

Clinical Refractometer Dog Cat Refractometer Pet Serum Dog Cat Refractometer for Measuring Serum Protein&Urine Specific Gravity B09QX382MQ Measuring range:Urine Specific Gravity(Dog and Cat):1.000-1.0..

Urine Specific Gravity Refractometer Handheld Pet Cat and Dog Hydrometer RZ126 Handheld Pet Cat Dog Urine Specific Gravity Refractometer Pet Tool B09G28NPY3 Triple-scale design to measure the Specifi..

Digital LCD Display PH Meter Tester Pocket Aquarium Pool Water Wine Urine LCD Pen Monitor Microprocessor Waterproof B09VP41T87 Digital LCD Display PH Meter Tester Pocket Aquarium Pool Water Wine Urin..

Haofy Pet Clinical Refractometer Dog Cat Refractometer for Measuring Serum Protein and Urine Specific Gravity B09T34XDP8 Function: Helps measure pet's urine specific gravity and serum protein. Meas..

xianshi Reptile LCD Hygrometer Mini Reptile Thermometer 1 Pcs for Home Reptile Outdoor Lizard B08VWHRVR2 Digital thermometer hygrometer displays temperature and humidity records Made of quality mate..