Specs link
https://www.google.com.ph/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwjzwaXM3enQAhUBy7wKHUFwD6oQFggmMAE&url=http%3A%2F%2Feph.ccs.miami.edu%2Fprecise%2FGasSensorSpecs%2FCO2.pdf&usg=AFQjCNEl86x0q81scLMc3CQle_xxF6EI7w&sig2=6uv0DW5GwYMWtX8kleC5Lw