{"title":"AGS02MA I2C TVOC Gas Sensor","handle":"ags02ma-i2c-tvoc-gas-sensor","url":"/products/ags02ma-i2c-tvoc-gas-sensor","description":"The AGS02MA is a compact MOX-based TVOC (Total Volatile Organic Compounds) gas sensor with an I2C interface. It features a built-in ADC that outputs gas resistance and parts-per-billion (ppb) readings — higher ppb values indicate more organic compounds in the air.\n\nThis is a simple, inexpensive sensor that provides raw TVOC readings without additional filtering or calculations. It works with both 3V and 5V logic, so no level shifting is required. Two 10K pull-up resistors are needed for the I2C bus connection.\n\nKey Features\n\n\nTVOC Detection – Measures volatile organic compounds in parts-per-billion (ppb)\n\nI2C Interface – Digital output with built-in ADC\n\n3V/5V Compatible – No level shifting required\n\nCompact Size – Miniature MOX sensor package\n\n\n\nWarning: This sensor requires a 20KHz I2C clock rate. It will not work at 100KHz or 400KHz. Confirmed working on RP2040, ESP32, and ATmega328 (Arduino UNO). Does not work on SAMD21 or SAMD51. Verify your board supports 20KHz I2C before purchasing.\n\n\nIdeal For\n\nIndoor air quality monitoring\nVOC detection in enclosed spaces\nSimple environmental sensing projects\n\n\nPackage Contents\n\n1× AGS02MA TVOC gas sensor\n\n\n\nNote: Two 10K pull-up resistors are required for the I2C bus connection (not included).\n\n\nResources\n\nArduino Library\nCircuitPython Library\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":1712,"title":"Default Title","sku":"AF-5593","price":10.01,"on_sale":false,"in_stock":true,"available_quantity":1,"option1":"Default Title"}]}