Posted in | Gas Sensors | Gas Analyzer

Refrigerant Gas Detector: TOC-20

The TOC-20 Refrigerant Gas Detector from International Gas Detectors offers precise measurements of refrigerants, thereby assisting plant compliance to F-Regs and EN 378.

The TOC-20 has clean lines and can be simply integrated into present or newly intended control systems, which makes it the preferred device of plant engineers. The TOC-20 gas detector can work individually or combined into third-party control systems.

Gas Type

  • R22
  • R134A
  • R401a
  • R401B
  • R404A
  • R408A
  • R409A
  • R410A
  • R411A
  • R416A
  • R507

The TOC-20 refrigerant gas detector is the perfect solution to guarantee that users’ plant or walk-in freezer complies with both EN 378 and F-Gas regulations. The sensor has the ability to detect several F-gases, such as R22, R134a, R404a, R407c, R410a, etc. The TOC-20 gas detector is an independent monitor with relay, 4 to 20 mA and 0 to 10 V output.

This enables the detector to be integrated into building management systems or site-wide refrigerant control systems. In addition to this, the TOC-20 refrigerant gas detector has a user-friendly interface with a color RGB display and internal sounder. The display offers live gas readings.

Key Features

  • IP54
  • Standalone
  • Analog output ranging from 4 to 20 mA
  • Plug replaceable sensors
  • Color RGB display with live gas readings


Standard applications include the following:

  • Walking cold stores
  • Refrigerant plants to guarantee compliance with F-Gas and EN378 regulations
  • Small commercial walk-in freezers


  • Industry Standard 4 to 20 mA output
  • Pre-calibrated
  • Standard 2 gang pattress mount
  • TUV Tested
  • Wall mount or dado mount
  • Weight 200 g
  • Range accuracy of +/−2%
  • IP54
  • Temperature = −5 °C to 55 °C
  • Replaceable sensor
  • Feasibility of in-service calibration


Listed below are the accessories available for the TOC-30 (sold separately):

  • Bump test kits
  • Collector cone
  • Cable glands
  • Remote reset button
  • Gas collector hoods
  • Calibration adaptors
  • Splash guard to enhance IP rating
  • Audible visual alarms or beacon sounders

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