{"product_id":"mq-138-formaldehyde-aldehydes-gas-detection-sensor","title":"[Discontinued] MQ-138 Formaldehyde Aldehydes Gas Detection Sensor","description":"\u003cp\u003e\u003cspan style=\"color: #339ccc;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003eFor the family, the environment of the volatile compounds detection devices, suitable aldehydes, alcohols, ketones, aromatic compounds detected, the gas sensor test concentration range:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e1 to 100ppm benzene\u003c\/li\u003e \u003cli\u003eToluene 10 to 100ppm\u003c\/li\u003e \u003cli\u003eMethanol 5 to 100ppm\u003c\/li\u003e \u003cli\u003eAlcohol 30 to 300ppm\u003c\/li\u003e \u003cli\u003eAcetone 10 to 300ppm\u003c\/li\u003e \u003cli\u003eFormaldehyde 1 to 10ppm\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eProvide a reference routines, circuit diagrams and Other relative information.\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"color: #339ccc;\"\u003e\u003cstrong\u003eSpecification:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSize: 32mm x 22mm x 30mm\u003c\/li\u003e \u003cli\u003eMain chip: LM393, formaldehyde-sensing probe\u003c\/li\u003e \u003cli\u003eWorking voltage: DC 5V\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cspan style=\"color: #339ccc;\"\u003e\u003cstrong\u003eCharacteristics:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \u003col\u003e \u003cli\u003ewith the signal output LED indication;\u003c\/li\u003e \u003cli\u003e2-way signal output (analog output, and TTL-level output);\u003c\/li\u003e \u003cli\u003eTTL output valid signal is low; (low output signal light, which can be accessed microcontroller IO port)\u003c\/li\u003e \u003cli\u003eanalog output increases with the concentration, the higher the voltage the higher the concentration;\u003c\/li\u003e \u003cli\u003ealdehydes, alcohols, ketones, aromatic compounds with high sensitivity;\u003c\/li\u003e \u003cli\u003ewith a long life and reliable stability;\u003c\/li\u003e \u003cli\u003eFast response characteristics;\u003c\/li\u003e \u003cli\u003ewith mounting holes for easy permanent installation;\u003c\/li\u003e \u003cli\u003ethe probe can plug design for easy testing.\u003c\/li\u003e \u003c\/ol\u003e \u003cp\u003e\u003cspan style=\"color: #339ccc;\"\u003e\u003cstrong\u003ePackage Include:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e1x MQ138 Formaldehyde Aldehydes gas detection sensor\u003c\/li\u003e \u003c\/ul\u003e","brand":"SainSmart","offers":[{"title":"US ONLY","offer_id":49290296721562,"sku":"101-60-125","price":13.3,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/coretarps.co.uk\/products\/mq-138-formaldehyde-aldehydes-gas-detection-sensor","provider":"My Store","version":"1.0","type":"link"}