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Crowcon Tetra 3 - Multi 4 Gas Detector & Alarm

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  • Crowcon Tetra 3 in hand view
  • Crowcon Tetra 3 in hand view application
  • Crowcon Tetra 3 in screen view
  • Crowcon Tetra 3 in multiple view
  • Crowcon Tetra 3 in side view
£650.88 (inc VAT) £542.40 (exc VAT)
Calculated at checkout

 Product Description

Crowcon Tetra 3 - Personal Multi Gas Detector and Alarm

Rugged single button multi gas detector

crowcon-tetra-3.jpgThe Tetra:3 multigas monitor is a compact, robust and easy-to-use diffusion based detector. The Tetra 3 multi-gas monitor is the newest addition to the Tetra family. Tetra 3’s single button operation, small size and weight make it the easiest to use gas detector on the market. Based on the proven and highly successful Tetra product, Tetra 3 is designed for use in demanding industrial environments. Despite its compact size the Tetra:3 is ultra-rugged and water proof.

Single button operation, small size and clear top-mounted display make it a favourite in the market amongst those working in demanding industrial environments such as those in the water, telecoms, food, brewing or hydrocarbons sectors.

The Crowcon Tetra 3 can be configured to monitor combinations of the following gases:

Gases include the most common four (carbon monoxide, methane, oxygen and hydrogen sulphide), but also an expanded range: ammonia, ozone, sulphur dioxide, H2 filtered CO (for steel plants) and IR carbon dioxide (for safe area use only). Crowcon T3 now comes with a 3-year O2 sensor as standard.

We have shown the most common configurations for the Tetra 3 to buy through our website. Should you require the alternative combinations then please do contact us.

There are also a wide range of accessories available for this unit from Gas Monitor Point which can be found on our accessories and spares section.

Features & Benefits:

  • Up to 4 gases in a small and lightweight design
  • Single button operation for all functions, can be operated with gloved hands
  • Rugged impact resistant design provides extra shock and vibration protection
  • Reliable Lithium-ion battery provides over 16 hours continuous operation from a single charge with no memory effects.
  • Water and Dust resistant to IP67, can be submerged in water
  • Rapid and effective warning with a 95 dBa audible alarm, an extremely bright red/blue visual alarm and vibrating alarm as standard.
  • Top mounted, backlit display of all gas readings, diagnostics and battery life.
  • Dust and waterproof to IP67

 Supplied With The following:

  • Crowcon Tetra 3
  • Battery
  • Charger
  • Manual

Crowcon Tetra 3 Technical Specifications

Weight 269g
Dimensions 112 x 72 x 49mm (tapers to 20mm)
4.4 x 2.8 x 1.9"
Gas Range Alarm UK/ROW Alarm USA
Flammable 0-100% LEL 20% LEL 10% LEL
Oxygen 0-25% 19/23.5% 19.5/23.5%
Hydrogen Sulphide 0-50ppm 5ppm 10ppm
Carbon Monoxide 0-500ppm 30ppm 35ppm
Typical Response Times Flammable 20s, Toxic Gas 30s, Oxygen 10s
Audible Alarms 95dBa
 Multiple alarm sounds allow selection of distinctive tones for  
different alarm levels
Visible Alarms Dual colour red/blue flashing LED pairs in gas hazard
Vibrating Alarm Internal vibrating alarm
Display Graphic LCD with backlight, giving simultaneous display for
all gas channels. 
Graphic symbols for battery (with proportional indication of
 remaining operation time), healthy operation or fault warning.  
Start up indication when calibration is due within 30 days, 
calibration overdue or service required
Display Mode Normal display for real time gas concentration levels.
Display recall for peak readings and TWA
Battery Rechargeable Li-Ion
Operating Time Based on four gas unit with flammable sensor > 16 hours
Sampling Diffusion or hand aspirator
Operating Temp Range -20 to +55°C (-4 to 131°F)
Humidity 0-99% RH
Ingress Protection IP65 and IP67
Approval Codes: Europe ATEX II 2G EEx iad IIC T4 (tamb -20 to 55°C)
Approval Codes: International IECEx Ex iad IIC T4 (tamb -20 to +55°C)
Approval Codes: USA Class I Division 1 Groups A, B, C, D pending
Safety Standards: Europe EN50014, EN50020, EN50018, 94/9/EC
 Safety Standards: USA & Canada  UL913, CSA22.2, 152
Operation Standards EN50270, EN50271, IEC61508, EN61779


For Full Specifications and details please click on the DataSheet link below.


Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

 If you require a different configuration of sensors to the standard shown here then please contact our helpful sales team on +44 (0) 1704 330 315  and we will be happy to put together a quotation to your requirements. 

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