{"title":"Adafruit INA3221 - Triple 0-26 VDC, ±3.2 Amp Power Monitor","handle":"adafruit-ina3221-triple-0-26-vdc-3-2-amp-power-monitor-ada6062","url":"/products/adafruit-ina3221-triple-0-26-vdc-3-2-amp-power-monitor-ada6062","description":"The Adafruit INA3221 breakout monitors current, voltage, and power on up to three independent power rails simultaneously over I2C. Each channel supports high or low-side measurement up to +26V DC at ±3.2A with ±1% precision — replacing the need for up to six multimeters in a multi-rail system.\n\nWith built-in 0.05Ω 1% sense resistors, a 13-bit ADC, and configurable over-current alert pins, this breakout is ready to go out of the box. Pre-attached 3.5 mm terminal blocks and STEMMA QT / Qwiic connectors mean you can wire up without soldering.\n\nKey Features\n\n\n3 Independent Channels – Monitor three power rails simultaneously from a single chip\n\nUp to +26V DC, ±3.2A Per Channel – High or low-side measurement with ±1% precision\n\n13-bit ADC – 0.4 mA current resolution at ±3.2A range\n\nBuilt-in 0.05Ω Sense Resistors – 1% precision shunt on each channel, no external components needed\n\nOver-Current Alerts – Warning and critical IRQ pins for configurable current thresholds\n\nSTEMMA QT / Qwiic Connectors – Solderless I2C connection with daisy-chain support\n\nPre-Attached Terminal Blocks – 3.5 mm screw terminals for quick power rail hookup\n\n3.3V & 5V Compatible – Works with Arduino, CircuitPython, Raspberry Pi, and more\n\nCustomisable Range – Replace sense resistors to change current range (e.g., 0.01Ω for up to ±16.4A at 2 mA resolution)\n\n\nIdeal For\n\nMulti-rail power supply monitoring and validation\nBattery and solar panel system profiling\nEmbedded power consumption analysis across multiple subsystems\nOver-current detection with configurable alert thresholds\n\n\nPackage Contents\n\n1× Adafruit INA3221 Triple Power Monitor Breakout (assembled)\n3× 3.5 mm Terminal Blocks (pre-attached)\n1× 0.1\" Header Strip\n\n\n\nWarning: Not for use with AC voltages. DC only, up to +26V per channel.\n\n\nResources\n\nAdafruit INA3221 Guide\nSTEMMA QT Overview\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":788,"title":"Default Title","sku":"AF-6062","mpn":"ADA6062","price":21.65,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":33,"option1":"Default Title"}]}