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Crowcon T4 Personal Monitor

Crowcon Tetra 4 Gas Detector
Crowcon Tetra 4 Gas Detector
Crowcon Tetra 4 Hand Held
Crowcon T4 App

The Crowcon T4 Gas Detector integrates innovative safety features in an intuitive, rugged design to provide advanced protection for those working in harsh environments.

The Crowcon T4 provides effective protection against the four most common gas hazards. As well as the simple one button operation and easy to use menus, the T4 is packed with other innovative features to make its use simpler and the wearer safer.

Unique to the Crowcon 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.


  • 4 Gas - FLAM / O2 / H2S / CO
  • Display: Front mounted, backlit, 180° flip for easy viewing while worn
  • Datalogging:130 hours of data at 10s intervals 3,500
  • Ingress Protection: IP65 and IP67
  • Zone 1 ATEX certified
  • Size:135 x 80 x 35mm
  • Weight: 282g
  • Battery: Li-ion battery / Up to 18 hour runtime; 5.5 hour recharge
  • Operating Temperature: -20°C to +55°C
  • 1 button operation
  • TWA resume function
  • Positive safety indicators