Starting at $155.00

Not in stock. Usually ships in 2-3 weeks [?]

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  • PID control loops
  • Over/under temperature limit control loops
  • 10 and 15 ampere power output/heater driver options
  • On-board data logging
  • Current measurement input
  • Sequencer start up and control function
  • Programmable timer and counter functions
  • Programmable math and logic options
  • Multiple communication protocols options
  • Mobile configuration with removable secure digital (SD) flash card

The Watlow EZ-ZONE® RM Access Module controller simplifies thermal system management. The EZ-ZONE RM controller family is comprised of six module types: an integrated on-off or PID control, monitoring and over/under temperature limit module, a high-density on-off or PID control module, a high-density limit only module, an input/output (I/O) expansion module, a high-density monitor/scanner module and a data logging and field communications access module. A system is configured by connecting any combination of module types to address specific application needs. The EZ-ZONE RM is extremely flexible and scalable allowing mixing and matching of I/O to configure 1 to 152 control loops and up to 256 monitor points.

Benefits of using an integrated controller solution:

  • Reduces wiring time and termination complexity compared with connecting multiple discrete products
  • Improves system reliability
  • Reduces termination and installation cost
  • Eliminates compatibility issues often encountered with using various discrete components and brands
  • Reduces troubleshooting time and downtime costs because the system can specifically identify any problems with a sensor, controller, solid state relay (SSR) power output or heater load
  • Complete thermal solution saves engineering time and labor costs while shortening project schedules

Multiple inputs; from 1 to 152 PID loops of control or monitor up to 256 analog inputs

  • Mix and match I/O to fit any application; from 1 input with 2 outputs to 152 analog inputs with 152 outputs, or monitor up to as many as 256 analog inputs all in one system
  • Reduces cost because only required loops are purchased
  • Allows a common controller platform across many design applications as both loops and outputs can be ordered in single increments

Additional Key Functions

  • Configuration communication port (standard bus)
  • Removable modules and connectors
  • Ring lug and front-screw terminal options
  • Profile ramp soak with 400 total steps
  • Retransmit and remote set point input virtually inside controller eliminating costs for input/output hardware
  • User configuration settings can be stored and recalled
  • Thermistor input
  • Elevated operating range of 0 to 149°F (-18 to 65°C)
  • UL® listed, CSA, CE, RoHS, W.E.E.E. FM, SEMI F47-0200, Class 1, Div. 2 rating on selected models

Power Supplies

Watlow AC/DC Power Supply Converter
From 90-264VAC to 24VDC (2.5A, 60W) for EZ-ZONE RM multi-function controllers


Watlow SpecView HMI Software
Communicates with any EZ-ZONE controllers, flexible data logging and report generator

Mounting Bracket


Watlow Remote User Interface
In-panel display and interface for the Watlow EZ-Zone ST Integrated Control Loop


Please consider these optional accessories.

Watlow Quencharc RC Suppressor
Protects EZ-ZONE controller outputs from damage that can be caused by voltage spikes from inductive loads (250VAC max)
Watlow 50A Current Transformer
0 to 50A transformer for EZ-ZONE RM multifunction controllers
In Stock
Watlow EtherNet/IP Cable Adapter
For use with EZ-ZONE RM multi-function controllers