Falco Fixed VOC Detector

Fixed Photoionisation Detector (PID) Used To Detect Volatile Organic Compounds (VOCs) For Maximum Plant And Worker Safety.

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The Ion Science FALCO is the latest generation of fixed PIDs that continuously detect a wide range of volatile organic compounds (VOCs).

Unique to FALCO is its revolutionary Typhoon Technology safeguarding the sensor from condensing moisture for added reliability in severe weather conditions. Additionally the FALCO incorporates patented Fence Electrode Technology, which negates the effects of airbourne humidity. The Ion Science FALCO gives you cutting-edge performance; reliability, accuracy and results you can trust so you can be sure workforce and plant receive on-going maximum protection. With its humidity resistance and anti-contamination design drift is minimised and run-time extended, saving both time and cost to your business.

Offering the ultimate in safety the Ion Science FALCO Fixed VOC Detector overcomes false readings found with other PIDs. Its multi-coloured LED status display can be seen from a distance of twenty metres in sunlight ensuring you are clearly alerted to hazards present.

FALCO has an externally located Intrisically Safe sensor for quick and easy servicing without the need for a hot work permit. Dual certification allows FALCO to be serviced and calibrated in a hazardous environment without having to remove power.

Simple to operate FALCO has an intuitive user interface. It has five magnetic switches with LED confirmation, a high contrast OLED screen and graphical interface ensuring installation and servicing are both quick and easy.

RS485 (Modbus®), 4-20 mA and Relay outputs are standard for all models. The Relay outputs are configurable for either high and low alarms, fault conditions or test cycle synchronisation.

The Ion Science FALCO Fixed VOC Detector offers the ultimate in flexibility and can be purchased as one of four detection ranges in either a pumped or diffused variant. With a diffused model, servicing costs are kept to a minimum with no pump to maintain.

Type 0-10 ppm 0-50 ppm 0-1000 ppm 0-3000 ppm
Sensitivity 0.001 ppm 0.01 ppm 0.1 ppm 1 ppm


Ultimate Performance
  • The only VOC detector specifically designed for extreme weather
  • Typhoon Technology stops condensation forming within the PID 
  • Cutting-edge sensor performance minimises drift & downtime
Ultimate Safety
  • Eliminates false readings found with other PIDs 
  • Multi-coloured status display seen from 20 metres in sunlight
  • Fitted with long-life lamp for two years continuous use 
  • Ex d approved
Ultimate Flexibility
  • Pumped or diffused models available
  • Pumped unit ideal for difficult to access locations
  • Diffused model reduces servicing costs
  • Four detection ranges available
  • Selectable response factor for varying VOC selection
Technical Specifications
Sensor Photoionisation with 10.6 eV lamp  
Detection Ranges and Sensitivity* 10.0 ppm 0.001 ppm
50.0 ppm 0.01 ppm
1000 ppm 0.01 ppm
3000 ppm 1 ppm
Detection Time (T90) <30 seconds (diffused)**  
User Interface Display: OLED high contrast white on black: 128 (w) x 64 (h) pixels
  Screen size: 35mm (w) x 17.5mm (h)
  5 magnetic switches with LED confirmation (up, down, left, right & enter). Magnetic actuator supplied.
Status Indicator Bright visible status indicator: RED, AMBER, GREEN
II 2G Ex d ib IIC T4 Gb
Environmental Specification Without pump: -40 °C to 60 °C (-40 °F to 140 °F)
  With pump:  -20 °C to 60 °C (-4 °F to 140 °F)
  0-100% RH and condensing humidty  
Mechanical Interface
2 x cable entry points with 3/4” NPT threads (left and right)
2 x 3/4” NPT to M20 Stainless steel (supplied)
Dimensions Without Pump: 200 (h) x 190 (w) x 125 (d) mm
  With Pump: 290 (h) x 190 (w) x 125 (d) mm
Mounting Points 2 x M8
Input Power
Working voltage: 12 to 40 Vdc
Max. power: 2 watts
4 to 20 mA (active and passive)
RS485 supports Modbus® protocol
Relay x 2 SPST (60 Vdc 2A) - configurable


The FALCO Fixed VOC Monitor can be used to detect gases across a wide range of industries and applications, including:
  • Manufacturing
  • Processing
  • Refineries & Petrochemical
  • Chemical 
  • Waster water treatment
  • Pulp & paper
  • Pharmaceutical
  • IAQ 
  • Solvent recovery systems
  • Industrial painting & coating 
  • Fenceline monitoring
  • Outdoor air quality
  • Tankfarms
  • Bunkering