MQ-137 Ammonia (NH3) Gas Sensor Module

MQ-137 Ammonia (NH3) Gas Sensor Module

Detect the presence of Ammonia and other amine-type gases with the specialized MQ-137 Gas Sensor Module. This sensor is engineered for high sensitivity to Ammonia (NH3), making it an essential component for air quality monitoring in agricultural, industrial, and environmental applications.

The MQ-137 is ideal for creating air quality alarms for livestock farms, industrial refrigerators, and chemical plants. This easy-to-use breakout board includes all necessary supporting circuitry, featuring a versatile dual-output system. The **Analog Output (A0)** provides a real-time voltage reading proportional to the Ammonia concentration, while the **Digital Output (D0)** acts as a simple alarm, triggering when the concentration surpasses a user-defined threshold.

This trigger point can be precisely calibrated using the onboard potentiometer, allowing you to customize the sensor’s sensitivity for your specific safety or monitoring application.

Key Features:

• Sensor Model: MQ-137
• Primary Detection: High sensitivity to Ammonia (NH3) gas
• Dual Output: Provides both Analog (voltage) and Digital (HIGH/LOW) signals
• Adjustable Sensitivity: Onboard potentiometer to configure the digital alarm threshold
• Operating Voltage: 5V DC
• Interface: 4-pin header (VCC, GND, D0, A0) for simple connection
• Long Life and Stability: Designed for reliable, long-term operation

Applications:

The MQ-137 sensor is perfectly suited for a range of specialized applications, including air quality control in farms, monitoring for ammonia leaks in cold storage and refrigeration systems, and general industrial air quality monitoring.