MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Detection Smoke methane liquefied Gas Sensor Module for Arduino Starter DIY Kit

High-concerned chemical：None Theory：Hall Sensor Material：Polymer Type：Gas Sensor Output：Analog Sensor Origin：Mainland China Use：Gas Sensor

High-concerned chemical: None Theory: Hall Sensor Material: Polymer Type: Gas Sensor Output: Analog Sensor Origin: Mainland China Use: Gas Sensor