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SKU: T4-HOCA

Crowcon T4 Portable Gas Detector | Crowcon Tetra 4

SKU: T4-HOCA

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The Crowcon T4 (Tetra 4) portable gas detector is the ultimate solution that combines compliance and robustness at a low cost. Its built-in gas sensors are also incredibly sensitive, capable of measuring in Part Per Billion (PPB), protecting against the four most common gas hazards, which are CO, H2S, LEL and O2.

Description

With its single-button operation and intuitive menu system, the T4 ensures easy use even whilst wearing gloves. This product requires minimal training for use. It is the toughest portable gas monitor from Crowcon to date, designed to withstand the harshest conditions. The integrated rubber boot adds to its durability, making it a reliable companion.

The Crowcon T4 has undergone rigorous testing, including drop tests from a height of 4m. This product is certified with IP65 and IP67 ratings for protection against water ingress. This means it can be used without interruption in demanding environments.

In addition to its ruggedness, the T4 also offers several useful features. The TWA Resume feature accurately calculates the time-weighted average (TWA) toxic gas exposure over an entire work shift, even if the T4 is turned off during breaks or travel. The TWA Resume function provides the option to include previous measurements within the correct time frame.

With an impressive 18-hour battery life, the T4 ensures longer shifts between recharges whilst its traffic light indicator provides constant visual assurance of its status.

Gas Sensor OptionsConfigurations
2 Gas3 Gas4 Gas
OxygenXXXXXXX  
Oxygen (Long Life)       XX
Flammable PellistorX XXXXXXX
Hydrogen Sulphide  X  XXXX
Carbon Monoxide X X X  X
Carbon Monoxide (H2 Immune)    X XX 

Specifications

SizeW135 x H80 x D35 mm (5.3 x 3.1 x 1.4in)
Weight282g (9.9oz)
DurabilityDrop tested to 4m onto concrete
AlarmsAudible >95dB
Bright red/blue visual LEDs
Integrated vibrating alert
DisplayFront mounted, backlit. Optional 180° flip for easy viewing whilst worn
Logging130 hours of data logging; Up to 3500 events
BatteryRechargeable Li-ion
18 hour typical runtime
5.5 hour recharge
Operating temperature-20°C to +55°C (-4°F to +131°F)*
Humidity10 to 95% RH @ 40°C non-condensing
Ingress protectionIndependently tested to IP65 and IP67
ApprovalsIECEx: Ex d ia IIC T4 Gb Tamb -20°C to +55°C
ATEX: Ex II 2 G Ex d ia IIC T4 Gb Tamb -20°C to +55°C
UL: Use in hazardous locations Class 1 Div 1, groups A, B, C and D only as to intrinsic safety
INMETRO: Ex d ia IIC T4 Gb Tamb -20°C to +55°C
ComplianceEMC Directive 2014/30/EU
InterfaceUSB communications lead
AccessoriesIncluded 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

Sensor Ranges

GasRangeResolution
Oxygen (O2)0-30% vol.0.1% vol.
Flammable0-100% LEL1% LEL
Hydrogen sulphide (H2S)0-100ppm1ppm
Carbon monoxide (CO)0-1000ppm1ppm
Description

With its single-button operation and intuitive menu system, the T4 ensures easy use even whilst wearing gloves. This product requires minimal training for use. It is the toughest portable gas monitor from Crowcon to date, designed to withstand the harshest conditions. The integrated rubber boot adds to its durability, making it a reliable companion.

The Crowcon T4 has undergone rigorous testing, including drop tests from a height of 4m. This product is certified with IP65 and IP67 ratings for protection against water ingress. This means it can be used without interruption in demanding environments.

In addition to its ruggedness, the T4 also offers several useful features. The TWA Resume feature accurately calculates the time-weighted average (TWA) toxic gas exposure over an entire work shift, even if the T4 is turned off during breaks or travel. The TWA Resume function provides the option to include previous measurements within the correct time frame.

With an impressive 18-hour battery life, the T4 ensures longer shifts between recharges whilst its traffic light indicator provides constant visual assurance of its status.

Gas Sensor OptionsConfigurations
2 Gas3 Gas4 Gas
OxygenXXXXXXX  
Oxygen (Long Life)       XX
Flammable PellistorX XXXXXXX
Hydrogen Sulphide  X  XXXX
Carbon Monoxide X X X  X
Carbon Monoxide (H2 Immune)    X XX 
Technical Specification
Size: 135mm x 80mm x 35mm
Weight: 282g
Detection Range: See table below
Temperatures (Operating): -20 to 55C
IP Rating: IP65/IP67
Alarms: Visual, Vibrating, Audible
Datalogging: 130 hours at 10 second intervals
Approvals: ATEX, IECEx, UL, INMETRO, CMED
FAQs
Which gases does the T4 detect?
  • Carbon monoxide (CO)

  • Hydrogen sulphide (Hâ‚‚S)

  • Oxygen (Oâ‚‚)

  • Flammable gases (LEL)​

How long does the T4 battery last, and how is it recharged?

The T4 features a rechargeable lithium-ion battery that provides up to 18 hours of continuous operation. Recharging takes approximately 5.5 hours using the single-unit or 10-unit cradle charger.

Can the T4 operate in extreme temperatures?

Yes, the T4 is designed to function in temperatures ranging from -20°C to +55°C (-4°F to +131°F). However, note that toxic and oxygen sensors are not rated for continuous operation above 50°C (122°F).

Is the T4 suitable for use in dusty or dirty environments?

Yes, the T4 is rated IP65 and IP67 for water and dust resistance. Additionally, it features a clip-on filter plate to protect sensors in dirty environments.

Is the T4 easy to use with gloves on?

Yes. The T4 has a large single button that can be operated even while wearing thick gloves, making it ideal for industrial environments.

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Product: Crowcon T4 Portable Gas Detector | Crowcon Tetra 4