Digital Controller
Digital Controller Digital ORP/pH Controller- logo
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Rola-Chem 554000 Generation II Digital ORP/pH Controller

SKU #: 554000

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Short Description

Providing the best in chemical feeders, Rola-Chem Digital pH Wall Controllers are convenient and reliable.

Chemical Feeder Features:

  • Digital readouts
  • Flow switch included
  • Microprocessor logic
  • ORP technology
  • Lockout security feature
  • Globe flow cell with flow switch
  • Redox sensor
  • Build-in out-of-range safety timeouts
  • Compatible with most peristaltic pumps
  • Proportional feed or continuous feed
  • pH calibration
  • Can also be used with erosion feeder/solenoid applications
  • Dip switch programmable settings
  • Acid or base feed
  • Factory setting pH: 7.4
  • Factory setting ORP: 650 mV
  • Feed cycle: .6 seconds
  • Display range pH: 6.8-8.2
  • Display range ORP: 0-995 mV
  • Feed cycle range: .6 to 900 sec with 5-minute timeouts
  • 120V corded
  • Automated or manual feed
  • Maximum amps: 5 amps


Rola-Chem Digital pH Wall Controllers are convenient and reliable, offering superior service for ORP/pH control and operations by dispensing an adjustable amount of muriatic acid based on pool demand. Features include digital readouts, ORP technology, Redox sensors, options for proportional or continuous feed, pH calibration and more.

Rola-Chem Digital pH Wall Controllers also feature acid or base feed options and are compatible with most peristaltic pumps, making them a preferred product for monitoring swimming pool pH levels. With automated and manual feed options and 120V power level, Rola-Chem promises state of the art control and efficiency. Designed for optimal pH control where a salt chlorinator is installed, the controller, flow cell with flow switch, pH probe, 3/8 tubing and fittings.

Please note: It is recommended that an in-line filter system (part number 550591) be used before the flow cell.