Mikroe Ammonia Click

Mikroe Ammonia Click is based on the MQ-137 gas sensor with a sensitive layer made of SnO2, which changes its resistance when exposed to ammonia. The sensor can sense NH3 concentration in the range of 5ppm to 200ppm. The board is equipped with a trimmer potentiometer. It adjusts the sensitivity and offset of the MQ-137 sensor, making it ideal for the detection of ammonia.

Features

On-board modules: Hanwei Electronics MQ-137 high accuracy ammonia sensor
5ppm to 200ppm range of NH3 concentration sensing
Integrated PWM-controlled heating element
Protected against particles and mechanical damage

GPIO, SPI, Analog interface
mikroBUS compatibility
L (57.15mm x 25.4mm) click board size
3.3V or 5V input voltage

Applications

Ammonia concentration detectors for air quality control, or for gas leak detection

Overview

Mikroe Ammonia Click

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