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Pen-style 4-in-1 water quality meter that measures conductivity, total dissolved solids, salinity, and temperature, showing two readings at once on it..

Replacement Allen key and screw set for servicing the REED R3530 conductivity/TDS/salinity meter, matching the hardware originally supplied with the u..

Copper-bodied replacement electrode for the REED R3530 conductivity/TDS/salinity meter, covering conductivity, TDS, salinity, and temperature readings..

The REED R3530-Kit is a pen-style 4-in-1 meter that measures conductivity, total dissolved solids, salinity, and temperature on a dual LCD display, bu..

Pen-style water quality meter that reads conductivity, total dissolved solids, salinity and temperature at once on a dual LCD, with automatic temperat..