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MW802 Standard Portable pH/Conductivity/TDS Combination Meter - Milwaukee Instruments
Milwaukee Instruments$185.003 meters in 1! This meter allows you to measure pH, EC (conductivity) and TDS with just one instrument and one single probe! The MW802, with a conductivity range that goes up to 6.00 mS/cm and the TDS up to 4000 ppm is ideal for testing in crop... -
3 Pack Triton ICP-OES Water Test w/Prepaid Shipping Label - Triton Labs
Triton$141.00Now Includes a Prepaid USPS First Class Shipping Label + Testing is Now Done in the USA! The results of this test provide you with the most detailed analysis of marine aquarium water you've ever seen, enabling you to understand exactly what's missing,... -
Digital Seawater Refractometer MA887 w/Protective Case - Milwaukee
Milwaukee Instruments$136.00This refractometer does come with a black or blue protective case. The new Milwaukee MA887 Seawater Digital Refractometer encompasses 3 different types of user selected scales for the measurement of seawater providing for a much more precise evaluation... -
PINPOINT ORP Monitor Complete Package - American Marine
American Marine$134.99Package includes additional 9-volt to AC Adapter Kit, 3x Additional ORP/REDOX Calibration Fluids PINPOINT® ORP Monitor will measure the ORP (oxidation-reduction potential, or REDOX) of your system. It is popular with those who use ozone gas or... -
FOWLR Deluxe Saltwater Test Set (HI98319, 781, Salifert PO4)
Salifert$129.99Hanna Salinity/Temperature Checker - HI98319 Salinity/Temperature Meter - Each meter is supplied with: CR2032 battery (inside the meter), Storage / Protection sleeve, Instruction manual, Quality certificate, and 35.00 ppt calibration standard sachet (4...