Ammonia (NH₃), a common and irritating gas, is widely present in agricultural production, chemical production, cold chain storage, and residential environments. Effective monitoring of this gas is crucial for ensuring safe production and living environments. Tensensor's MQ-K12 semiconductor ammonia sensor is a high-performance, high-sensitivity gas sensor based on metal-oxide-semiconductor (MOS) principles, suitable for various ammonia detection scenarios.

MQ-K12 Ammonia Sensor

Product Overview

    The MQ-K12 uses tin dioxide (SnO₂) as the gas-sensitive material. It exhibits low conductivity in clean air, but its conductivity increases with concentration when ammonia is present, thus outputting an electrical signal corresponding to the gas concentration. This sensor is not only sensitive to ammonia but also demonstrates good detection capabilities for organic amine gases such as trimethylamine and ethanolamine, making it a multifunctional and low-cost ammonia detection solution.

Key Advantages

    High Sensitivity: Demonstrates significant response to ammonia in the 5-500 ppm range, with a sensitivity Rs(air)/Rs(50ppm NH₃) ≥ 2.

    Wide Detection Range: Covers 5-500 ppm, suitable for various scenarios from environmental monitoring to leak alarms.

    Long Lifespan Design: Theoretically, it has a lifespan of up to 5 years, resulting in low maintenance costs.

    Simple Driving Circuit: Requires only basic peripheral circuitry and is easy to integrate.

    Cost Advantage: Offers superior cost-effectiveness compared to electrochemical sensors.

Application Scenarios

    Industrial Safety: Ammonia leak monitoring in chemical plants, refrigeration workshops, and fertilizer production.

    Agricultural Environment: Ammonia concentration detection in livestock farms and greenhouses.

    Home Alarms: Ammonia accumulation potential in home kitchens, bathrooms, and other similar locations.

    Portable Detection Equipment: Handheld ammonia detectors for convenient on-site inspections.

    In the current gas sensor market, the MQ-K12 holds a significant position in small to medium-sized ammonia detection equipment due to its mature semiconductor technology, stable output performance, and low system cost. It is particularly suitable for customers requiring bulk purchasing, embedded integration, and multi-scenario deployment.

    Whether monitoring ammonia leaks in industrial settings or ensuring air quality in residential environments, the MQ-K12 semiconductor ammonia sensor offers a reliable, economical, and flexible detection solution. If you are developing ammonia-related detection products, the MQ-K12 is a trustworthy sensing core for you:

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