T4
The T4 provides portable detection for the four most common gas hazards in one, simple to operate, durable device, to ensure compliance across a variety of sectors and environments.
Where to BuyWhether it’s detecting the presence and levels of carbon monoxide, hydrogen sulphide and other flammable gases, or monitoring oxygen depletion, the T4 is the simple, portable solution with an 18+ hour battery life.
Offering you compliance, robustness and low cost of ownership in a simple to use solution, the large single button and intuitive menu system allows T4 to be operated wearing gloves with minimal training.
Crowcon’s toughest portable yet, T4 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, T4 allows uninterrupted working in the most demanding environments.
Unique to T4, the TWA Resume function ensures toxic gas exposure is calculated accurately over an entire shift, even if T4 is switched off for a break or during travel to another site, so you’re always getting the most accurate readings possible.
18+ hours battery life
Highly durable
Intuitive device
Low cost of ownership
TWA Resume
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 UKCA: II 2 G Ex db ia IIC T4 Gb Tamb -20°C to +55°C (T4 Type 2)
IECEx: Ex db ia IIC T4 Gb -20°C ≤ Ta ≤ +55°C (T4 Type 2) UL and cUL: Use in hazardous locations Class 1 Div 1 groups A,B,C,D only as to intrinsic safety INMETRO: Ex db ia IIC T4 Gb -20 °C ≤ Ta ≤ +55 °C MED: Directive 2014/90/EU |
Standards | EMC Directive 2014/30/EU |
Interface | USB communications lead |
Accessories | Included with T4:
Integrated alligator clip and tethering loop Bump/Calibration plate Available separately: |
Crowcon Connect Compatible? | Yes |
* Toxic and oxygen sensors are not rated for continuous operation above 50°C (122°F)
Gas | Range | Resolution |
Oxygen (O2) | 0-30% Vol. | 0.1% Vol. |
Flammable | 0-100% LEL | 1% LEL |
Hydrogen sulphide (H2S) | 0-100ppm | 1ppm |
Carbon monoxide (CO) | 0-1000ppm | 1ppm |
ACCESORIES
Bump/Calibration plate T4-CAL-CAP
For applying test gas to T4
External filter plate T4-EXT-F
Clip-on filter for additional protection in dusty environments. Protects the sensors from contamination.
I-Test IT-T4-11Z-ZB-X
Easy automated bump testing and calibration solution.
Cradle charger T4-CRD-V2
Docking station for easy charging. Includes multi region power supply.
10 way charger T4-TWC
Charge and store up to 10 units. Requires only a single power outlet. *Not available for UL certified products.
Vehicle charger T4-VHL
Charge and store securely during transit.
*NEW* Portables Pro software
Newer version – clean, easy and intuitive to use. Service edition makes servicing T4x very easy. Visit software downloads to…
USB communications lead CH0103
For PC connection to T4x
DOWNLOADS
Videos
Activation
Includes: Switching T4 on, sensor zero and TWA Resume functions. Duration: 1m:37secs
Charging
Includes: Using the T4 cradle charger, 10 way charger and vehicle charger. Duration: 45secs
Gas sampling
Includes: Using the T4 aspirator plate and hand bulb to sample gas. Duration: 1min19secs
Manual bump
Includes: Bump test T4 using the clip-on bump/calibration plate. Duration: 1m:10secs
I-test bump
Includes: Bump test T4 using the automated I-Test bump and calibration station. Duration: 1m:12secs
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