Ammonia Click PID: MIKROE-4151 Ammonia Click is an Ammonia detection (NH3) sensor, based on the MQ-137 gas sensor. This gas sensor has a sensitive layer made of SnO2, which changes its resistance when exposed to ammonia. The sensor is able to sense NH3 concentration in the range of 5 ppm to 200 ppm. This Click board is also equipped with a trimmer potentiometer, used to adjust the sensitivity and offset of the MQ-137 sensor, making it well suited for the detection of ammonia, which may cause severe health disorders in the human body. Ammonia Click is supported by a mikroSDK compliant library, which includes functions that simplify software development. This Click board comes as a fully tested product, ready to be used on a system equipped with the mikroBUS socket. Specifications Type Gas Applications It can be used in different Ammonia concentration detectors for air quality control, or for gas leak detection. On-board modules Ammonia Click uses the MQ-137, a high accuracy Ammonia sensor, from Hanwei Electronics. Key Features 5 ppm to 200 ppm range of NH3 concentration sensing, integrated PWM-controlled heating element, protected against particles and mechanical damage. Interface Analog,GPIO,SPI Compatibility mikroBUS Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V or 5V Resources mikroBUS mikroSDK Click board Catalog Click boards Downloads Ammonia click example on Libstock Ammonia click 2D and 3D files Ammonia click schematic MQ137 datasheet Powered by TCPDF (www.tcpdf.org)