Marine Salt Testa from Trans Instruments is a waterproof salinity pen
The Marine Salt Testa is a three-in-one electronic testing pen that measures conductivity, temperature and salinity. And it floats. The new testing device from Trans Instruments can easily be calibrated, it is water proof and has a replaceable electrode tip. We love our refractometers, especially ones that are fine-tuned for seawater. With many tanks to Read More