Comparison page

INA226 vs MH-Z19B

Side-by-side selection notes for specs, ecosystem readiness, known issues, and data confidence. This page is generated from structured component fields instead of a hand-written article.

INA226

Projects needing Power monitor and I2C with a commonly available sensors part.

MH-Z19B

Projects needing CO2 and NDIR with a commonly available sensors part.

Specification Matrix

DimensionINA226 MH-Z19B

CategorySensorsSensors

MakerTexas InstrumentsWinsen

CoreNot specifiedNot specified

ClockNot specifiedNot specified

WirelessNot specifiedNot specified

Voltage3.3V3.3V

LibrariesArduinoArduino

Price$2.00 - $6.00$15.00 - $30.00

Known Tradeoffs

INA226

Breakout boards may use different pin labels or regulator choices
Clone modules can differ from the original datasheet part

MH-Z19B

Breakout boards may use different pin labels or regulator choices
Clone modules can differ from the original datasheet part

Open Individual Model Pages

INA226

Texas Instruments

Higher-resolution I2C current, voltage, and power monitor for embedded power profiling.

China-madeSensors84% confidence

MH-Z19B

Winsen

NDIR CO2 sensor module commonly used in indoor air quality projects.

China-madeSensors80% confidence