Testo 340 & 350 Portable Gas Analyzer

In the world of maritime emissions monitoring, having a portable yet highly accurate gas analyzer is crucial for compliance and efficiency. The Testo 340 and 350 have become industry go-to solutions, offering ship operators the ability to perform on-the-spot gas measurements with precision. Whether for engine diagnostics, fuel optimization, or regulatory compliance, these analyzers deliver critical insights to ensure ships meet emission standards while maintaining optimal performance.

** We strive for accuracy, but details may change, and errors are possible. Please verify specifications with the manufacturer or seller before purchasing. **

🏷️ Pricing: New | Used | Bulk


1️⃣ Technical Specifications

  • Gas Measurement Capability: Measures Oβ‚‚, CO, COβ‚‚, NO, and NOβ‚‚, with an optional sensor slot for SOβ‚‚.
  • Sensor Technology: Uses electrochemical sensors for high accuracy and reliability.
  • Measurement Ranges:
    • Oβ‚‚: 0–25%
    • CO: 0–10,000 ppm
    • NO: 0–4,000 ppm
    • NOβ‚‚: 0–500 ppm
    • SOβ‚‚ (optional on Testo 350): 0–5,000 ppm
  • Pump System: Built-in gas sampling pump for continuous measurements.
  • Durability: Robust design with impact-resistant casing, ideal for harsh marine environments.
  • Connectivity & Data Logging: Bluetooth and USB data transfer for easy reporting and integration with shipboard systems.
  • Battery Life: Up to 10 hours of continuous use, ensuring long operational uptime.
  • Testo 350 vs. Testo 340: The Testo 350 offers enhanced data storage, higher sensor accuracy, and modular components, making it a more advanced version for in-depth analysis.

2️⃣ Benefits

βœ… Portable & easy to use – Lightweight and compact for on-the-go emissions testing aboard ships.

βœ… Complies with IMO MARPOL Annex VI – Essential for shipowners needing to meet NOβ‚“ and SOβ‚“ emission limits.

βœ… Real-time engine diagnostics – Helps fine-tune fuel-air mix, reducing fuel consumption and improving efficiency.

βœ… Versatile sensor options – Modular design allows the addition of an extra sensor (like SOβ‚‚) for more detailed emissions monitoring.

βœ… Wireless data transfer – Bluetooth connectivity makes it easy to store and analyze data remotely.

βœ… Long battery life – Up to 10 hours of operation, minimizing downtime.

βœ… Durable for marine environments – Built with a rugged outer shell to withstand exposure to extreme conditions aboard ships.


3️⃣ Drawbacks & Limitations

⚠️ Limited gas detection in base model – While the Testo 340 covers standard emissions, SOβ‚‚ requires an additional sensor upgrade (Testo 350 supports SOβ‚‚ natively).

⚠️ Higher learning curve – The Testo 350 has advanced functionalities, which may require additional training for full utilization.

⚠️ Periodic calibration required – Electrochemical sensors degrade over time and need routine calibration to maintain accuracy.

⚠️ Initial investment cost – While cost-effective for long-term use, the initial price is higher than basic handheld gas detectors.


4️⃣ Final Verdict

Final Score: 9.2/10

For shipowners, engineers, and environmental compliance officers, the Testo 340/350 provides an accurate, portable, and durable solution for onboard emissions monitoring. The Testo 340 is ideal for routine spot-checks, while the Testo 350 offers advanced diagnostics and extended gas measurement capabilities. Both models ensure compliance with IMO regulations, help optimize fuel efficiency, and provide detailed emissions data for proactive maintenance.

If your vessel needs high-precision gas analysis with real-time data logging and wireless connectivity, the Testo 340/350 is a top-tier choice.

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