Aye guys looky what i found http://www.amazon.com/gp/product/B001PDGFR8/ref=pd_lpo_k2_dp_sr_2?pf_rd_p=486539851&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B005BJGT3C&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=1HBYJ1RK5GCEGGXHJB4M
Pretty much i was looking for somthing that would tell me the reletive C02...