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RAE Systems RAEGuard S

4-20 mA PID Transmitter

The RAEGuard S is a permanently installed gas detector for hydrocarbon combustible gases, carbon dioxide and a wide range of toxic gases.

It is a flexible detector which provides both an analog (4-20mA) and digital (RS-485, ModBus RTU) output signal. The RAEGuard S uses a smart sensor which can be off-line pre-calibrated. An explosion-proof stainless steel enclosure and magnetic key non-intrusive operation make the RAEGuard S ideal for use in hazardous environments.

The RAEGuard S is equipped with a local digital display and LEDs for viewing of gas concentration and alarm conditions.

Easy to Use

  Magnetically accessed keys for non-intrusive calibration
  Designed for easy access to sensor
  Local digital display with alarm indication


  RS-485 digital communication in ModBus protocol
  Adjustable 4-20mA analog output
  Operation at 9 to 36VDC
  2 programmable alarm relays


  Long-life sensor
  Explosion-proof stainless-steel enclosure

Advanced Technology

  Smart NDIR, Catalytic or Electrochemical sensors
  Offline calibration
  Quick response sensors


  Waste water treatment plants
  Petroleum and natural gas fields
  Marine and off-shore oil wells
  Refineries and petrochemical plants
  Pulp and paper plants
  Chemical plants
  Power plants
  Steel mills

Data Sheet

Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

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