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Crowcon T3R Tetra 3 Multi 4 Gas Detector And Alarm

We are now offering the Crowcon T4 in preference to T3 due to suitability into the market, the increased need for bump testing and the age of the T3 design.

The 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:

Weight269g
Dimensions112 x 72 x 49mm (tapers to 20mm)
4.4 x 2.8 x 1.9"
GasRangeAlarm UK/ROWAlarm USA
Flammable0-100% LEL20% LEL10% LEL
Oxygen0-25%19/23.5%19.5/23.5%
Hydrogen Sulphide0-50ppm5ppm10ppm
Carbon Monoxide0-500ppm30ppm35ppm
Typical Response TimesFlammable 20s, Toxic Gas 30s, Oxygen 10s
Audible Alarms95dBa
 Multiple alarm sounds allow selection of distinctive tones for  
different alarm levels
Visible AlarmsDual colour red/blue flashing LED pairs in gas hazard
Vibrating AlarmInternal vibrating alarm
DisplayGraphic 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 ModeNormal display for real time gas concentration levels.
Display recall for peak readings and TWA
BatteryRechargeable Li-Ion
Operating TimeBased on four gas unit with flammable sensor > 16 hours
SamplingDiffusion or hand aspirator
Operating Temp Range-20 to +55°C (-4 to 131°F)
Humidity0-99% RH
Ingress ProtectionIP65 and IP67
Approval Codes: EuropeATEX II 2G EEx iad IIC T4 (tamb -20 to 55°C)
BASEEFA05AATEX0187
Approval Codes: InternationalIECEx Ex iad IIC T4 (tamb -20 to +55°C)
BAS05.0059
Approval Codes: USAClass I Division 1 Groups A, B, C, D pending
Safety Standards: EuropeEN50014, EN50020, EN50018, 94/9/EC
 Safety Standards: USA & Canada UL913, CSA22.2, 152
Operation StandardsEN50270, EN50271, IEC61508, EN61779

Products specifications
Attribute nameAttribute value
Gases DetectedMulti Gas O2, CO, H2S and LEL

Crowcon T3R Tetra 3 Multi 4 Gas Detector And Alarm

Gas Detected: Upto 4 Gases
Type: Multi Gas Detector
Manufacturer: Crowcon
SKU: T3R
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Crowcon T3R Tetra 3 Multi 4 Gas Detector And Alarm

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