| BRAND | Crowcon |
| Product | Tetra 4 O2/CH4 |
| Description | Portable Multi-Gas Detector for Oxygen and Methane |
| Internal code | IMP4947244 |
| Weight | 0.28 |
| Technical specification | <ul><li><strong>Model:</strong> Tetra 4 O₂/CH₄</li><li><strong>Manufacturer:</strong> Crowcon</li><li><strong>Detected Gases:</strong> Oxygen (O₂), Methane (CH₄)</li><li><strong>Measurement Range:</strong> O₂: 0-30% vol; CH₄: 0-100% LEL</li><li><strong>Sensor Type:</strong> Electrochemical (O₂), Catalytic bead (CH₄)</li><li><strong>Battery Life:</strong> Up to 18 hours</li><li><strong>Display:</strong> Backlit LCD with 180° flip option</li><li><strong>Features:</strong> Single-button operation, rugged design, IP65/IP67 rated, TWA Resume function</li></ul> |
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