Comparison page

AHT20 vs MLX90614

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.

AHT20

Projects needing I2C and Humidity with a commonly available sensors part.

MLX90614

Projects needing IR temperature and Non-contact with a commonly available sensors part.

Specification Matrix

DimensionAHT20 MLX90614

CategorySensorsSensors

MakerAosongMelexis

CoreNot specifiedNot specified

ClockNot specifiedNot specified

WirelessNot specifiedNot specified

Voltage3.3V3.3V

LibrariesArduino, MicroPythonArduino

Price$0.60 - $1.80$8.00 - $20.00

Known Tradeoffs

AHT20

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

MLX90614

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

Open Individual Model Pages

AHT20

Aosong

Popular Chinese I2C temperature and humidity sensor used as a low-cost SHT-series alternative.

China-madeSensors82% confidence

MLX90614

Melexis

Infrared temperature sensor used for non-contact temperature measurement projects.

China-madeSensors78% confidence