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Product Features
  • Easy installation and maintenance
  • Adaptable to all conditions
  • Choice of materials
  • Wide range of sensors
  • Three junction box options
  • Infrared option available
  • High-temperature models are available
Delivery options

At Cadmus Products, we prioritise efficient order delivery and offer competitive shipping rates worldwide. Our streamlined process ensures clarity and reliability for all your shipping requirements.

  • We handle consignments of various sizes across the UK and globally, primarily using DHL, but may select other couriers for specific needs.

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The Crowcon Xgard Fixed Multi-Gas Detector The Xgard range is a comprehensive selection of fixed multi-gas detectors that meet the diverse requirements for gas detection globally. Whether you need gas detection around water treatment facilities, oil and gas, power, research facilities or manufacturing installations, with three different sensors to choose from, there will be an Xgard to suit your needs.

    Xgard offers three different sensor concepts so you can choose exactly what you need for your site. Xgard is available in flameproof, intrinsically safe, or safe area formats for use in all environments, whatever the classification.


      The Xgard range offers a comprehensive selection of fixed-point gas detectors that meet the diverse requirements for flammable and toxic gas detection and oxygen monitoring in industries worldwide.

        Whichever version of the Xgard you choose, you can be confident that they’re all designed to operate in even the harshest conditions and can be manufactured using materials which can withstand the conditions of your specific space. With flexible installation options, the Xgard series can be wall or ceiling-mounted, without additional brackets. Designed for easy installation, replacing sensors and sinters is extremely simple, helping to keep maintenance costs down.


          Low Cost of Ownership:

          • ▪ Designed for easy installation and maintenance to keep costs down
            • ▪ Three junction box options designed to make the replacement of sensors and sinters extremely simple
              • ▪ Spare sensors simply plug-in and go
                • ▪ Many spare parts are common to all Xgard models, which keeps spare holding requirements to a minimum

                  • Flexible Installation Options:

                    • ▪ The Xgard multi-gas detectors are designed for either wall or ceiling mounting, with no need for additional brackets
                      • ▪ Can accommodate M20 or 1/2″ NPT cable glands, suiting all site requirements
                        • ▪ High-temperature models are available for hot environments (up to 150°c)
                          • ▪ Accessories are available for duct mounting and sampling applications, as well as remote gassing

                            • Wide Range of Sensors:

                              • ▪ Poison-resistant pellistors provide all flammable detection needs, including hydrocarbons, hydrogen, ammonia, jet fuel, leaded petrol and vapours containing halogens
                                • ▪ Electrochemical sensors are used to detect a vast range of toxic gases and oxygen
                                  • ▪ Thermal conductivity sensors are available to monitor % volume concentrations of gases

                                    • Rugged and Reliable:

                                      • ▪ Manufactured from either glass-reinforced nylon, highly durable aluminium with a tough polyester coating, or 316 stainless steel for ultimate corrosion resistance
                                        • ▪ Spray deflectors and weatherproof caps are available, designed for use in areas subject to regular wash-downs, or offshore environments
                                          • ▪ All models have been validated to the functional safety standard IEC 61508 (SIL 1 to SIL 3)
    Type 1 Type 2 Type 3 Type 4 Type 5 Type 6
    Size 156 x 166 x 111mm (6.1 x 6.5 x 4.3 inches) 195 x 166 x 111mm (7.6 x 6.5 x 4.3 inches) 156 x 166 x 111mm (6.1 x 6.5 x 4.3 inches)
    Weight Nylon: 0.5 kgAlloy: 1kg (2.2lbs)316 S/S: 3.1kg (6.8lbs) Aluminium: 1kg (2.2lbs)Stainless steel: 3.1kg (6.8lbs) 1.5 kg (3.3lbs) Aluminium: 1kg (2.2lbs) Stainless steel: 3.1kg (6.8lbs)
    Enclosure material ATEX certified: Glass reinforced nylon or 316 S/SUL Certified: Aluminium or 316 S/S Aluminium or 316 Stainless Steel Aluminium Aluminium or 316 Stainless Steel
    Ingress protection IP65 IP54 IP65
    Cable entries 1 x M20, 1/2 “NPT or 3/4 NPT* on right-side
    Terminations 0.5 to 2.5mm2
    Sensor type Electrochemical Catalytic bead 316 S/S sensor housing with catalytic beads Catalytic bead
    Operating temperature -40 to +50 °C
    (-40 to 122 °F)
    (sensor dependant)
    -20 to +50°C (-4 to 122°F) -40 to +80°C
    (-40 to 176°F)
    -20 to +150°C (-4 to 302°F) -40 to +55°C (-40 to 131°F)
    Humidity 10 to 95% RH non-condensing 0-99% RH non-condensing
    Repeatability Zero drift <2% FSD (Typical)<2% FSD per Month (Typical)
    Response time T90 <15s OxygenT90 <30s to 120s Toxic(sensor dependant) T90 <15s (Typical)
    Operating voltage 8-30V dc 2.0V dc +/- 0.1V (Typical) 10-30V dc
    Power requirements 24mA maximum 300mA (Typical) 50mA at 24V dc 1.2W
    Electrical output 2- wire 4-20mA (current sink) 3- wire mV bridgeTypical signal: 12-15mV/ %LEL CH4 3- wire mV bridgeTypical signal: >10mV/%LEL CH4 3- wire 4-20mA (current sink or source)
    Approvals ATEX: II 1 G
    Exia IIC T4 Ga
    (Tamb -40 to +55°C)
    UL/cUL: Class I, Div. 1
    Groups A, B, C, D
    IECEx
    EAC
    ATEX: II 2GD
    Exd IIC T6 Gb (Tamb -40 to +50°C)
    UL: Class I, Div. 1
    Groups B, C, D
    IECEx
    EAC
    ATEX: II 2 GD
    Exd IIC T4 Gb
    (Tamb -40 to +80°C)
    Exd IIC T6 Gb (Tamb -40 to +50°C)
    Ex tb IIIC
    T180°C Db
    UL: Class I, Div. 1
    Groups B, C, D
    IECEx
    EAC
    ATEX: II 2 GDExd IIC T3 Gb (Tamb -40 to +150°C) ATEX: II 2 GDExd IIC T6 Gb (Tamb -40 to +50°C)
    Exd IIC T4 Gb (Tamb -40 to +80°C)
    Ex tb IIIC
    T180°C Db
    UL: Class I, Div. 1
    Groups B, C, D
    IECEx
    EAC
    EMC compliance EN 50270       FCC Part 15    ICES- 003

    *3/4 ” cable entry only available on aluminium juntion boxes.

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