US$ 250.00
total dissolved solids (TDS)
EC 0–3999 µS/cm
Visit the ProQuatro Meter & Cable page to purchase the handheld unit and cable assemblies
direct-read cable
preventing leaks and contamination
Solinst 464 Electronic Pump Control Unit BNC connection total dissolved solids (TDS)The Solinst 464 Electronic Pump Control Unit is a battery powered timer controller that drives Solinst's pneumatic pumps the 407 Bladder Pump, 408 408M Double Valve Pumps, and 425 Discrete Interval Sampler hand pump. It regulates a compressed gas supply (air, nitrogen, or an inert gas cylinder) delivered through a drive line to the pump, while an internal solenoid valve cycles between a drive phase (pressurizing the line to force water upward) and a
US$ 250.00
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