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Crowcon T4x - Multi Gas Detector with New MPS™ and Long life O2 Sensors

(£520.00 ex. VAT)
(£624.00 inc VAT)
Free uk delivery

on orders over £100 (4-5 working day delivery)

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Crowcon T4x - Personal Multi Gas Detector and Alarm

T4x is Crowcon’s personal protection solution for detecting the four most common gas hazards:

  • Carbon Monoxide (CO)
  • Hydrogen Sulphide (H2S)
  • Flammable Gases (MPS)
  • Oxygen Depletion (O2)

Offering you compliance, robustness and low cost of ownership in a simple to use solution. The large single button and intuitive menu system allows T4x to be operated wearing gloves with minimal training.

Crowcon’s toughest portable yet, T4x is durable by design and includes an integrated rubber boot as standard. An optional clip-on filter cover, which is easily removed and replaced, ensures sensors are protected in the dirtiest environments. Drop tested to 4m and well protected from water ingress through IP65 and IP67 certification, T4x allows uninterrupted working in the most demanding environments.

Now with improved detection of pentane, hexane and other long chain hydrocarbons.

T4x contains a wide range of powerful features to make everyday use easier and safer:

Eliminates poisoning and cuts number of sensor replacements

For Asset Managers / Operations Directors who want to achieve more with less resources, T4x eliminates poisoning and cuts number of sensor replacements by 75% only 1 sensor needs replacing over the device’s lifetime.

Go to gas detector for all confined spaces involving oxygen

For Health and Safety Managers who want to make the business safer, T4x is the only go to gas detector for all confined spaces involving oxygen, as it detects more than 15 flammable gases at once straight out the box, as well as oxygen, and H2S and CO.
Operators can be confident that this device will keep them safe in hostile environments without fear of it failing on them.

Reduce total cost of ownership

For Procurement Managers who are looking to reduce total cost of ownership and improve environmental standing of the products they buy without sacrificing safety or functionality, the T4x is the product of choice.

35+ hours battery

With a battery life of 35+hours, T4x allows multiple or longer shifts to be worked between recharging.

Sensor type

MPS: Building on over 50 years of gas expertise, Crowcon is pioneering advanced molecular property spectrometer (MPS™) sensor technology that detects and accurately identifies over 15 different flammable gases in one device.

Dual Toxic: Utilising a 3 year life dual toxic sensor (CO and H2S). You get the same performance of individual sensors in one package reducing costly replacements with tried and tested technology.

Long-Life Oxygen: Crowcon’s new long-life Oxygen sensor saves you money and delivers on safety and environmental regulation better than ever before.



Size W135 x H80 x D35 mm (5.3 x 3.1 x 1.4in)
Weight 282g (9.9oz)
Durability Drop tested to 4m onto concrete
Alarms Audible >95dB
Bright red/blue visual LEDs
Integrated vibrating alert
Display Front mounted, backlit. Optional 180° flip for easy viewing whilst worn
Logging 130 hours of data logging; Up to 3500 events
Battery Rechargeable Li-ion
18 hour typical runtime
5.5 hour recharge
Operating temperature -20°C to +55°C (-4°F to +131°F)*
Humidity 10 to 95% RH @ 40°C non-condensing
Ingress protection Independently tested to IP65 and IP67
Approvals ATEX and UKEx II 1 G Ex ia IIC T4 Ga -20°C ≤ Ta ≤ +55°C (T4 Type 1) II 2
G Ex db ia IIC T4 Gb Tamb -20°C to +55°C (T4 Type 2)IECEx Ex ia IIC T4 Ga -20°C ≤ Ta ≤ +55°C (T4 Type 1) Ex db ia IIC
T4 Gb -20°C ≤ Ta ≤ +55°C (T4 Type 2)UL Use in hazardous locations Class 1 Div 1 groups
A,B,C,D only as to intrinsic safetyINMETRO Ex db ia IIC T4 Gb -20 °C ≤ Ta ≤ +55 °CMED Directive 2014/90/EU
Interface USB communications lead
Accessories Included with T4:


Integrated alligator clip and tethering loop

Bump/Calibration plate

Available separately:
Single unit cradle charger, 10 unit cradle charger; Vehicle charger
Clip on filter plate for sensor protection in dusty environments
I-Test automated bump and calibration station

Crowcon Connect Compatible? Yes

* Toxic and oxygen sensors are not rated for continuous operation above 50°C (122°F)

Gases and Ranges

Gas Range Resolution
Long-Life Oxygen (O2)  0-25% Vol.  0.1% Vol.
Flammable (MPS)  0-100% LEL  1% LEL
Hydrogen sulphide (H2S)  0-100ppm  1ppm
Carbon monoxide (CO) 0-1000ppm  1ppm



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