Compare MQ-7 Semiconductor Sensor for Carbon Monoxide $2.10 Sensitive material of MQ-7 gas sensor is SnO2, which with lower conductivity in clean air. It make detection by method of cycle high and low temperature, and detect CO when low temperature (heated by 1.5V). The sensor’s conductivity is more... 0 Add to Cart
Compare MQ-6 Semiconductor Sensor for LPG $1.90 Sensitive material of MQ-6 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple... 0 Add to Cart
Compare MQ-4 Semiconductor Sensor for Natural Gas $1.90 Sensitive material of MQ-4 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple... 0 Add to Cart
