Comparison page

HX711 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.

HX711

Projects needing Load cell and ADC with a commonly available sensors part.

MH-Z19B

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

Specification Matrix

DimensionHX711 MH-Z19B

CategorySensorsSensors

MakerAvia SemiconductorWinsen

CoreNot specifiedNot specified

ClockNot specifiedNot specified

WirelessNot specifiedNot specified

Voltage3.3V3.3V

LibrariesArduino, MicroPythonArduino

Price$0.80 - $3.00$15.00 - $30.00

Known Tradeoffs

HX711

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

HX711

Avia Semiconductor

24-bit ADC front-end for load cells, kitchen scales, and force measurement projects.

China-madeSensors78% confidence

MH-Z19B

Winsen

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

China-madeSensors80% confidence