MH-Z19B CO2 detection sensor module Infrared carbon dioxide sensor
MH-Z19B 0-5000PPM Mh-z19c 400-5000ppm C is an upgrade of B Carbon dioxide gold shell (non mh-z19) 400-5000ppm Carbon dioxide white shell (non mh-z19) 400-5000ppm
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MH-Z19B CO2 detection sensor module Infrared carbon dioxide sensor