Crowcon Tetra 4 Gas Detector
H2S, O2,CO, LEL% C/W Charging Cradle And Calibrated
The T4 portable 4-in-1 gas detector provides effective protection against 4 common gas hazards: carbon monoxide, hydrogen sulphide, flammable gases and oxygen depletion. The T4 multi gas detector now comes with improved detection of pentane, hexane and other long chain hydrocarbons.
Offering you compliance, robustness and low cost of ownership in a simple to use solution.
Coronavirus latest: We are still open for business! Please click here for our full statement on our operations.
We pride ourselves on our excellent service and aim to despatch all orders promptly. If you order before 3pm Monday to Friday we will try to send it out that day, for next working day delivery. Orders:
- placed after 3pm Monday to Thursday will be processed the next day
- placed after 3pm on a Friday or at a weekend or on a Bank Holiday will be processed on the next working day
- Orders to the Highlands, Islands and Out of Area may be a two-day delivery and overseas will be longer
Please call us for time-critical orders, so we can process the order as a matter of urgency and confirm the delivery schedule.
All goods are subject to availability. If we can't supply your goods within 30 days from the date of order, we will inform you immediately and let you know the expected delivery date.
If you opt for a courier delivery, you will receive an email or text on the day we despatch your order, informing you that it is enroute. On the morning of delivery, at around 07:30, you will receive a further email or text giving you a 1-hour delivery time slot. Please therefore ensure that you have given us the correct mobile number and email address.
Couriers are extremely busy during Christmas and the sales, so please allow extra time.
We will not be held liable for any consequential loss caused by late or failed deliveries.
Timed deliveries / Saturday & Sunday deliveries
We can arrange timed deliveries for:
- pre-12 (midday)
- Saturday pre-10:30am
- Saturday pre-12 (midday)
- Sunday (anytime)
Some of the timed delivery options are available via the website, for others including a Sunday delivery, please call the office for a confirmed price and to arrange the alternate delivery.
Timed deliveries are subject to stock availability (we will contact you if any of your order is not in stock, so you can confirm if you would like us to split the delivery) and must be placed by 3pm Monday to Friday. Please call us if it's after 3pm as we may still be able to catch our couriers.
T4 is Crowcon’s personal protection solution for detecting the four most common gas hazards:
- carbon monoxide CO
- hydrogen sulphide H2S
- flammable gases LEL
- 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 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.
Now with improved detection of pentane, hexane and other long chain hydrocarbons.
Comes with charging cradle and the detector will be calibrated.
T4 contains a wide range of powerful features to make everyday use easier and safer:
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.
When most portable detectors are turned off, the algorithm that assesses TWA exposure assumes that it’s the end of the shift. When turned on again, these detectors act as if it is a new work shift, ignoring all previous measurements. The TWA Resume function however, provides the option to include previous measurements from within the correct time frame.
18 hour battery
Li-Ion rechargable battery with a battery life of 18 hours, T4 allows multiple or longer shifts to be worked between recharging. Recharging time is 5.5 hours.
Crowcon’s visual ‘traffic light’ indication, provides constant visual assurance that T4 is operating soundly and conforms to site bump test & calibration policy. The bright green and red Positive Safety LEDs are visible to all and offer a quick, simple and comprehensive indication of monitor status to both the user and others around them.
Type of gas detector
4X Gas Detector
Ingress Protection Rating
135 x 80 x 35mm
H2S Hydrogen Sulphide 0-100ppm, LEL Lower Explosive Limit 0-100%, CO Carbon Monoxide 0-1000ppm, O2 Oxygen 0-30%,
ATEX: II 2 G Ex db ia IIC T4 Gb Tamb -20°C to +55°C
-20C to 55C
130 hours of event logging; Up to 3500 events
Type of gas detector