Manufactured specifically for pH and ORP electrodes

Professional Saltwater Alkalinity Colorimeter for Reef & Marine Aquariums

Double junction electrodes have two chambers

Social impact: 100 days of clean water donated to fight water poverty with every purchase

accurate temperature compensation

HM Digital BTR-1000 Digital Beer Refractometer — Brix, Plato & Specific Gravity aquarium TDS tester Manufactured specifically for pH andHM Digital BTR 1000 Smart Digital Beer Refractometer The BTR 1000 is the smart digital refractometer built for homebrewers and craft beer professionals. Get accurate Plato, SG, Brix, and temperature readings in under 3 seconds with Automatic Temperature Compensation (ATC) and Bluetooth connectivity built in. Key Features Measures sugar concentration in Plato, SG, Brix & Temperature Automatic Temperature Compensation (ATC) 1060C range Bluetooth enabled