{"title":"Dual Gas CO and CH4 Detection Sensor - MQ-9B","handle":"dual-gas-co-and-ch4-detection-sensor-mq-9b","url":"/products/dual-gas-co-and-ch4-detection-sensor-mq-9b","description":"The MQ-9B is a CO and CH₄ gas detection sensor form Winsen. The sensing material of the MQ-9B is SnO2, which has a low conductivity in clean air. It detects carbon monoxide (1.5V) by method of cycling high and low temperature. The sensor’s conductivity gets higher with the CO and CH₄ gas concentration rising. The sensing range is 10-500ppm CH₄. A simple circuit makes measuring this change in conductivity and turning it into data fairly straight-forward, but does require some calibration.For easy Solderability; use our Gas Sensor Breakout Board.","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":3716,"title":"Default Title","sku":"SF-SEN-17050","price":12.78,"on_sale":false,"in_stock":true,"available_quantity":204,"option1":"Default Title"}]}