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5° F holding temperature
Aluminum alloy case
Needs replacement only every six months under normal circumstances
It will not run
(240 ml) of warm tap water
American Marine PINPOINT Conductivity Monitor HiBlow 5° F holding temperaturePINPOINT Conductivity Monitor (220V) is an instrument for the measurement of hardness in freshwater. The conversions are 33 S=17. 9 ppm=1dH. Good quality reverse osmosis water measures 515 S, while de ionized water measures 01 S. The Conductivity Monitor is automatically temperature compensated and has two ranges, making it useful for different applications. The freshwater hobbyist will appreciate the instant readings for precise hardness. The