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Water Quality Controllers

Multi-Variable Controller pH, ORP, Contacting Conductivity, Flow
AM-2250-Controller
The AM-2250 provides control of external devices using its 3 independent control and alarm relays. Select the parameter you wish to measure. Conductivity, pH, ORP or Flow.
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Multi-Variable Controller, pH, ORP, Toroidal Conductivity, DO
AM-2251-Controller
The AM-2251 is a new addition to the 2250 family. Select the parameter you wish to measure from the LCD menu on the inside front cover. Choose Conductivity, pH, ORP or D.O.
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Panel and Wall Mount pH Controllers
PHCN-961-Series
The PHCN-961/962 series of pH controller and transmitter provides a reliable method of monitoring and controlling pH in water treatment and chemical industries
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Conductivity, Resistivity, or TDS Controller
CDCN-961-Controller
The CDCN-961 conductance, resistance or total dissolved solids (TDS) controller is designed for inline monitoring of process solutions and water applications.
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Conductivity or Resistivity Controller
CDCN441-Controller
The CDCN441 conductance/resistance analyzer controller is designed for online monitoring of process solutions and water applications. Available outputs include ON-OFF or PWM.
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Panel Mount Conductivity and Temperature Monitor and Controller
CDTX-111-CDTX-112-Series
The CDTX-111 and CDTX-112 conductivity/temperature controllers are panel instruments for in-process monitoring of conductivity that use unique signal collection technology.
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1/8" DIN Panel Mount pH Controller
PHCN37-Series
The PHCN37 pH panel mounted controller features automatic or manual temperature compensation of pH, two 5 amp mechanical relays and a choice of a scalable 4 to 20 mA output
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pH/ORP Transmitter and Controller with TFT color display
PHCN-85-Controller
The PHCN-85 has two 4 to 20 mA outputs to control or retransmit the pH or ORP and temperature value. In addition there are 3 relay outputs for pH, ORP, temperature or timing
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Dual Channel Conductivity/ResistivityController
CDCN91-Controller
The CDCN-91 dual channel conductivity/resistivity controller is a two-channel input device equipped with three scalable 4 to 20 mA outputs and four programmable relays.
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Toroidal Conductivity Analyzer
CDCN442-Controller
Toroidal Conductivity or Concentration Analyzer. Discontinued. Replaced by AM-2251
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