GA24XT- M Gas Alertclip Extreme – CO Description Description Range 0 – 500 PPM 24 Month life Water-resistant Built-in concussion-proof boot Related products 10L-490-T – 10LBUMP GAS BWC2-H510 Gas Alertclip Extreme – H2S 58L-421 – CALIBRATION GAS 58L MCXL-XWHM-Y-NA BW Gas Alert Microclip XL