RDM Remote Display

Provides convenient viewing of gas level readings from a secondary location

Displays gas level readings, channel status and faults received from the FCS, offers configurable display settings


  • Chiller Rooms
  • Manufacturing Plants
  • Refrigeration Plants
  • Food Processing Plants
  • Arenas and Pools
  • Refrigeration Plants
  • and many more...

Key Features

  • View gas readings and system statuses in an alternate location
  • LCD display and LED indicators
  • Internal audible alarm
  • Modbus® RS-485 RTU communication
  • Output for remote strobe and/or horn connection
  • Connection loss detection to ensure accurate information is displayed
  • Standard water / dust tight, corrosion resistant enclosure


The RDM is a remote display device designed to communicate with the FCS Flexible Control System controllers. It displays gas readings, channel status and faults received from the FCS and can be viewed from a remote, relevant location such as a refrigeration application where there are two different entrances to the chiller room. The RDM employs connection loss detection to ensure the information that is displayed is current. Simple configurations such as adjusting the display contrast and setting the Modbus ID and baud rate can be done in the field. The RDM has several display configurations such as: show/not show one or more channels of interest, readings displayed by line scrolling or page scrolling, display one type of gas and not another, display only the top 4 channels in high alarm, etc. The RDM comes in a standard water / dust tight, corrosion resistant ABS / polycarbonate enclosure with a hinged, secured door. 

Available with an optional, factory installed side mounted strobe with audible (Option -L2).


The RDM used to be called the QCC-RDM. Product Notification

ABS / Polycarbonate, corrosion resistant
Copper coated interior to reduce RF interference
272 g / 9.6 oz
127 x 127 x 71 mm / 5.0 x 5.0 x 2.8 inches
User Interface
Backlit, LCD digital display
4-lines x 20-characters
Status LED indicators for low, mid, high and fault alarms
Push Buttons
UP, DOWN and ENTER dome buttons externally mounted for accessing menu options
Connection for remote strobe/horn
Audible Alarm
Internal audible alarm
Modbus® RS-485 RTU
Power Requirement
CET-RDM: 24 VDC, 0.5 W, Class 2 (24 VDC supplied by the Controller)
CET-RDM-L2: 24 VDC, 3 W, Class 2 (24 VDC supplied by the Controller)
4-conductor shielded minimum 18 AWG stranded within conduit
Thermal, resetting
Operating Temperature
-20°C to 40°C (-4°F to 104°F)
Operating Humidity
15 - 90% RH non-condensing
Conforms to:
CSA-C22.2 No. 205-12, UL508 (Edition 17):2007
EMC Directive 2004/108/EC, EN 50270:2006, Type 1, EN61010
FCC. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
RoHS compliant circuit boards
Product Codes
Remote Display for alternate location monitoring and visual confirmations, LCD display, 24 VDC, horn/strobe output drive, internal alarm, Modbus® communication, connection loss detection
Factory Options
Enclosure mounted (on side), strobe with audible, 40 mm / 2 in dia, 80 flashes per min, siren volume 85 dB, drip proof

Options, Accessories and More...