| name | range (ppm) | in box | |
|---|---|---|---|
| 117SA Nitrogen dioxide | 20-1,000 | 10 | |
| 117SB Nitrogen dioxide | 0.5-30.0 | 10 | |
| 117SD Nitrogen dioxide | 0.1-1.0 | 2 X 5 | |
| 740 Nitrogen dioxide | 0.01 - 0.1 ppm
0.02 - 0.2 ppm | 10 |
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| name | range (ppm) | in box | |
|---|---|---|---|
| 117SA Nitrogen dioxide | 20-1,000 | 10 | |
| 117SB Nitrogen dioxide | 0.5-30.0 | 10 | |
| 117SD Nitrogen dioxide | 0.1-1.0 | 2 X 5 | |
| 740 Nitrogen dioxide | 0.01 - 0.1 ppm
0.02 - 0.2 ppm | 10 |