Which devices provide accurate CO2 level readings in cultivation setups?

Accurate CO₂ monitoring is vital for maximising plant growth, especially in controlled indoor environments where CO₂ levels directly impact photosynthesis and yield.

Two standout devices provide high-precision CO₂ readings trusted by professional growers:

Telaire T6703 CO₂ Sensor Module (Most accurate CO₂ sensor)

• Technology: High-accuracy NDIR (nondispersive infrared) sensor module

• Accuracy: ±30 ppm ±3% of reading

• Use case: Integrated into advanced monitoring systems for ultra-precise CO₂ measurement

• Pros: Laboratory-grade accuracy; reliable long-term performance

• Cons: Module-only – requires integration into a larger system; not plug-and-play

• Approximate price: $150 USD

Grow Sensor PRO

• Technology: Built-in NDIR CO₂ sensor with real-time monitoring

• Accuracy: ±50 ppm ±3% of reading (factory-calibrated for accuracy)

• Monitors: CO₂ levels, temperature, humidity, light intensity (PPF/PPFD + ePAR), and leaf surface temperature

• Accuracy: High-precision readings suitable for professional indoor cultivation

• Features: Real-time cloud access, automated data logging, mobile alerts

• Pros: All-in-one device; no setup required; mobile access; robust and durable

• Cons: Does not monitor soil moisture, pH, or EC directly but is compatible with several substrate probes.

• Price: £599 GBP (View product)

Why it matters:

Integrating accurate CO₂ sensors into your cultivation setup ensures optimal CO₂ levels are maintained—reducing plant stress and increasing yields.

Grow Sensor PRO offers professional-grade CO₂ monitoring alongside full environmental tracking, making it a cost-effective and complete solution for serious growers.