Standard 4-Gas Calibration Mixture (50ppm CO/ 50% LEL/ 10ppm H2S/ 18% O2)
SKU
116ES-413-18
$180.00

Standard 4-Gas Calibration Mixture

50 PPM CO, 50 % LEL (2.5% VOL), 10 PPM H2S, 18% O2, Bal. N2