Crowcon DuoIQ Connected Dual-Gas Detector
Modular connected dual-gas personal detector for industrial applications.
Original manufacturer: Crowcon.
Hazardous-area suitability depends on the exact ordered version and approvals. Do not infer certification from other Crowcon devices.
Official Source
Crowcon official product range →
DuoIQ — dual-gas personal configuration
DuoIQ is a dual-gas personal instrument and therefore needs two independent calibration/alarm records, unlike a single-gas UnoIQ. Select the permitted two-gas combination for the actual job, verify sensor life and test procedures for each, and distinguish wearer alarms from cloud connection status. Rechargeable battery and communications accessories have their own environmental and hazardous-location restrictions. The model-specific certificate schedule, not the shared product family name, establishes approvals.
DuoIQ — two gas channels, not two universal sensors
| Form factor | 96 × 55 × 32 mm standard tray; 106 × 55 × 32 mm deep; approximately 140 g variant weight. |
|---|---|
| Measurement options | Gas-specific combinations of electrochemical, IR, pellistor and long-life O₂ technologies; e.g. CO 0–250 ppm, H₂S 0–100 ppm and O₂ 0–25% volume on distinct sensor trays. |
| Battery | Current table indicates up to seven days continuous for two tox/O₂ channels; IR and pellistor configurations about one day. Recharge under three hours. |
| Alarms and logs | 95 dB audible plus visual and vibration, TWA/STEL, maximum 500 event records; T90 under 10 s is sensor-dependent. |
| Ingress and interfaces | IP66/IP68, −20…+55°C; optional NFC/Bluetooth and IQhub for connected management. |
Engineering / variant cautions: The website lists ATEX/IECEx, CSA and other approvals, some with footnoted pending regional status. Certification, selected gas and service intervals are not automatically universal across all DuoIQ cartridges.
Official manufacturer model and engineering documentation — reviewed 26 October 2026.