WANDI FIX800 is a fixed multi-gas detector measuring up to 5 hazardous gases simultaneously. Here are 11 real-world deployment cases with installation photos — find the right gas combination for your facility.
📊 Gas Combination by Application
| Application | Gases Measured | Primary Hazard | Recommended Config |
|---|---|---|---|
| Wastewater / Sewage | O₂, CO, H₂S, LEL, CO₂ | O₂ deficiency, H₂S poisoning, explosion | FIX800 4–5 gas + FIX-DS |
| Construction / Tunnel | O₂, CO, CO₂, LEL | O₂ deficiency, CO poisoning, blast gas | FIX800 4-gas + FIX-DS |
| Server Room / CO₂ Zone | O₂ (or CO₂) | CO₂ suppression agent asphyxiation | FIX800 O₂ (legally required) |
| Dry Ice Container | CO₂ | CO₂ asphyxiation | FIX800 CO₂ + FIX-DS |
| Clean Room / Semiconductor | O₂, LEL, VOC | O₂ deficiency, explosion, solvent exposure | FIX800 3–5 gas |
| Septic Tank / Sewage | O₂, CO, H₂S, CO₂, LEL | H₂S poisoning, methane explosion | FIX800 4–5 gas + FIX-DS |
| Silo / Grain Warehouse | O₂, CO, H₂S, LEL | O₂ deficiency, H₂S generation | FIX800 4-gas + pre-filter |
| Large Ship | O₂, CO, H₂S, LEL | High dust + multi-hazard gas | FIX800 4-gas + dust-proof casing |
| Power Plant / Fire Room | O₂, CO₂ | Suppression agent leak, asphyxiation | FIX800 single/multi |
| Pharma / Lab | C₂H₂, H₂, O₂, VOC (custom) | Specialty gas leak, explosion | FIX800 custom combination |
| Water Treatment Plant | O₃ | Ozone inhalation (from 0.1 ppm) | FIX800 O₃ single |
① Wastewater Treatment Plants
Enclosed pump rooms and sludge zones generate H₂S, CO, and LEL simultaneously. Korean OSHA mandates gas measurement before confined-space entry.


② Construction Sites & Subway Tunnels
Active tunnel excavation produces CO₂, CO, and oxygen-deficient air. FIX800 + FIX-DS provides zone-by-zone real-time safety monitoring.


③ Server Rooms & CO₂ Suppression Zones


④ Dry Ice Refrigerated Containers

⑤ Clean Rooms & VOC Monitoring


⑥ Septic Tanks & Sewage Facilities


⑦ Silos & Grain Warehouses

⑧ Large Ships

⑨ Power Plants & Fire Suppression Rooms


⑩ Pharmaceutical & University Labs


Bonus: Water Treatment Plants — Ozone (O₃)
