四合一氣體檢測儀分辨率:0.01 ppm或0.001ppm(0~1ppm);0.01ppm(0~100ppm);0.1ppm(0~1000ppm);1ppm(1000ppm以上);0.1%Vol(0~100%Vol)或0.01%Vol(0~100%Vol);0.1%Lel(0~100%Lel)
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