Tue, 05 Aug 2025 18:16:37 +0000

Ammonia Gas Detection with Sensitron:

Ammonia (NH₃) is one of the most commonly used industrial gases in Egypt and around the world. Whether in cold storage warehouses, fertilizer production, food processing, or wastewater treatment, ammonia plays a critical role — but it comes with serious safety risks.

🚨 The Hidden Dangers of Ammonia

Ammonia is a toxic, corrosive, and potentially flammable gas:

Health Effects: Irritation starts from 25 ppm. Concentrations above 300 ppm are classified as Immediately Dangerous to Life and Health (IDLH).

Flammability: While not highly flammable under normal conditions, ammonia-air mixtures can ignite above 15% concentration.

Corrosiveness: Long-term exposure can damage electrical components and metal structures.

That’s why accurate and real-time detection of ammonia leaks is non-negotiable in high-risk industries.

✅ Sensitron’s Line for Ammonia Gas Detection

Sensitron SRL, a global leader in fixed gas detection technology, offers a full portfolio of smart, certified detectors for ammonia monitoring — trusted by industries across Europe and now available in Egypt through Tetra Tech.

Here’s a look at the best detectors for ammonia (NH₃):

🔹 SMART3G-C2 / SMART3G-D2

Toxic Gas and flammable Version for ammonia and more

IP65 or Flameproof ATEX versions

4-20 mA analog output, relay or Modbus RS485 options

Sensor heads are replaceable and calibrated

Suitable for industrial zones, factories, and mechanical rooms

🔹 SMART3R

Designed for safe (non-hazardous) areas

Cost-effective yet highly accurate NH₃ detection

Compact housing for commercial or indoor facilities

Wall-mountable and easy to integrate with BMS or fire systems

Ideal for: cold storage, supermarkets, machinery rooms

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🛡️ Why Choose Sensitron for Ammonia Monitoring?

✅ ATEX & SIL certified

✅ Made in Italy – European quality

✅ High-performance electrochemical and flammable sensors

✅ Long sensor life, fast T90 response

✅ Flexible architecture – analog and digital

🇪🇬 Tetra Tech: Your Gas Detection Partner in Egypt

As the authorized distributor of Sensitron SRL in Egypt, Tetra Tech supports you from design to commissioning:

📞 Contact Us Now for a Free Consultation

📧 sales@tetratech-eg.com

📞 01119969655

🌐 www.tetratech-eg.com

Choosing the Right Gas Detection Technology

Wed, 16 Jul 2025 07:37:04 +0000

Choosing the Right Gas Detection Technology: A Comparison of Catalytic Bead, NDIR, Electrochemical, and PID Sensors

When selecting a gas detection system for industrial, utility, or commercial applications, understanding the strengths and limitations of each sensor type is critical. Below is a comparison of four widely used gas detection technologies: Catalytic Bead, Non-Dispersive Infrared (NDIR), Electrochemical, and Photoionization Detectors (PID).

Below a comprehensive comparison between different type of gas sensors

Factor	TDLAS (Laser)	NDIR (Infrared)	Catalytic Bead	Electrochemical	Semiconductor (MOS)	Thermal Conductivity
Detection Sensitivity	Very high (ppb levels detectable)	High (ppm levels detectable)	Moderate (detects %LEL levels, i.e. thousands of ppm)	High (ppm or sub-ppm with new designs)	Moderate (ppm-level detection; typically needs tens of ppm)	Low (detects only high gas concentrations; e.g. percent levels)
Response Time	Fast (near-instantaneous)	Fast (seconds)	Moderate (seconds to tens of seconds)	Moderate (seconds to ~1 minute)	Moderate (seconds to tens of seconds; slower recovery after exposure)	Fast (seconds, limited by gas diffusion)
Selectivity	Very high (methane-specific, minimal cross-gas interference)	Moderate (selective to hydrocarbons, some cross-sensitivity to other IR-absorbing gases)	Low (responds to any combustible gas; non-specific)	High (designed for CH₄; minor cross-sensitivity if catalyst is specific)	Low (responds to multiple gases; not methane-specific, high cross-sensitivity)	Low (non-specific; responds to any gas with different thermal conductivity)
Oxygen Requirement	No (optical detection, works in inert atmosphere)	No (optical detection, works in inert atmosphere)	Yes (requires O₂ for combustion)	No**	Yes (requires O₂ for surface reactions on sensor)	No (works in inert atmosphere; purely physical measurement)
Maintenance / Lifespan	Low maintenance; stable calibration; long life (laser source ~years)	Low maintenance; minimal drift; sensor life >10 years	High maintenance; frequent calibration; sensor life ~2-5 years (can fail if poisoned)	Moderate maintenance; periodic calibration; sensor life ~2-5 years (electrolyte limited)	Moderate maintenance; periodic calibration needed (some drift over time); sensor life ~5-10 years (resistant to poisoning)	Low maintenance; minimal drift; sensor life >10 years (no catalyst to degrade)
Relative Cost	Very high (most expensive)	Medium (mid-range cost)	Low (least expensive per unit)	Medium (projected to be low-cost when widely available)	Low (inexpensive per unit; widely used in consumer detectors)	Medium (moderate cost; simple design, niche application)

Tetratech Egypt - Blog

Ammonia Gas Detection with Sensitron:

Choosing the Right Gas Detection Technology

Choosing the Right Gas Detection Technology: A Comparison of Catalytic Bead, NDIR, Electrochemical, and PID Sensors