CO2-meter

The carbon dioxide (CO₂) sensor in aquaculture is an essential tool for monitoring dissolved CO₂ levels in water. CO₂ is naturally produced by fish respiration, organic matter decomposition, and microbial processes. At high levels, it can be toxic and negatively affect aquatic organisms' health and growth.

✅ Main functions:

• Accurate measurement of dissolved CO₂ in freshwater or marine environments.

• Real-time monitoring in tanks, ponds, or RAS (Recirculating Aquaculture Systems).

• Configurable alarms for critical CO₂ levels.

• Analog or digital outputs for system integration.

⚠️ Why monitor CO₂?

• Excess CO₂ (> 15–20 mg/L) reduces oxygen uptake in fish (Bohr effect).

• Causes stress, reduced appetite, growth issues, and can be lethal at high levels.

• Especially critical in closed or recirculating systems.

📈 Typical measuring range:

• 0 to 30 mg/L, depending on sensor model.

🛠️ Available sensor types:

• Optical (NDIR infrared): non-contact, high precision, low maintenance.

• Electrochemical: sensitive but require regular calibration.