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The Haitronic HR0210 gas sensor uses the LM393 integrated circuit and the MQ-8 gas sensing element, which has high sensitivity to hydrogen. It provides a TTL digital output and a 0–5 V analog voltage output, which increases as the gas concentration rises.
The digital output provides an active-low signal and can be connected directly to a microcontroller. The sensor is resistant to interference from ethanol vapors, liquefied petroleum gas, and smoke, and offers a fast response and recovery time.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.