HM Digital PSC-54: Single Line, EC/TDS Mini Controller with 4-20mA Output Milwaukee pH600AQ "This is a terrific addition

"This is a terrific addition and you'll want a digital refractometer if you spend any time at all with saltwater aquariums

Temperature compensation chart – Each sachet includes a printed chart showing actual µS/cm values at various temperatures for precise calibration

and enjoy purified water immediately

Citrus Boost (CitraCharge®): The natural citrus formula actively dissolves and removes existing limescale buildup from the water pan

HM Digital PSC-54: Single Line, EC/TDS Mini Controller with 4-20mA Output Milwaukee pH600AQ "This is a terrific additionThe PSC 54 is a NEW product from HM Digital offering extended range EC TDS testing for commercial or industrial water treatment professional. This mini controller has an adjustable relay able to control a pump or valve with a 4 20mA output. FEATURES Extended range for TDS and EC 4 20mA output signal Temperature display mode Digital calibration The fully adjustable relay control is set by the user to automatically stop a pump or valve if the level