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TOC-20 HFC Refrigerant Gas Detector

£292.12 ex VAT

£350.54 inc VAT

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Measuring Ranges: Refrigerants Typically 0-1000ppm, Resolution 10ppm, Accuracy +/-5% of Range Temperature -5 to +55 °C, Resolution 1°C, Accuracy +/-4 °C Humidity 0-100% RH, Resolution 1%RH, Accuracy +/-4%RH


  • Multi-colour RGB LCD Display Backlight
  • Industry Standard 4-20mA/0-10V Outputs
  • Two Alarm Relay Outputs
  • Modbus Interface
  • User Configurable Alarms
  • Wall Mount
  • Sensors are Dust and Splash Resistant
  • Case sealed to IP64, , , , ,


The TOC-20 Refrigerant Gas Detectors provides accurate measurement of refrigerants, temperature and humidity aiding plant compliance to F-Regs and EN 378. Clean lines and easy integration into existing or newly planned control systems to make the TOC-20 the plant engineers device of choice. Using the latest microprocessor technology and software TOC-20 is a reliable long term monitoring solution. TOC-20 is supplied pre-calibrated ready to use.


  • Power: 18-28V DC (230V AC Adaptor Supplied)
  • Outputs: 3 off 4-20mA or 0-10V Linear Outputs for Refrigerant, Temperature and Humidity, Modbus RTU Interface, 2 off SPCO Relays Rated 4A Non Inductive, 85dB Alarm Sounder
  • Protection: IP64 (Excluding Sensor)
  • Operating temperature: -5 to 55 Deg C
  • Operating humidity: 5-95% RH Non-Condensing
  • Overall dimensions: 180mm X 100mm X 75mm (See Dimension Drawing)
  • Weight: 375g