Robomart Gas Sensor Kit With Breakout

High sensitivity to alcohol.* Fast response and High sensitivity* Stable and long life* Simple drive circuit APPLICATIONThey are suitable for natural gas checker, Breathalyser.MQ gas sensor composed by micro AL2O3 ceramic tube, Tin Dioxide (SnO2) sensitive layer, measuring electrode and heater are fixed into a crust made by plastic and stainless steel net. The heater provides necessary work conditions for work of sensitive components. The enveloped MQ - 4 has 6 pin, 4 of them are used to fetch signals, and other 2 are used for providing heating current. This Natural Gas sensor is suitable for detecting Natural Gas concentration on your breath, just like your common breathalyzer. It has a high sensitivity and fast response time. Sensor provides an analog resistive output based on Natural Gasconcentration. The drive circuit is very simple; all it needs is one resistor. A simple interface could be a 0 - 3.3 V ADC.