# Which devices provide accurate CO2 level readings in cultivation setups?

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](https://shop.growsensor.co/products/the-grow-sensor-pro))

### **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.**

<br>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://faq.growsensor.co/additional-faqs/product-features/which-devices-provide-accurate-co2-level-readings-in-cultivation-setups.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.