Hydrogen 1.4 ppm after 5 minutes working.
14 drops h2 blue drops reagent
5 months ago 00:12:04 1
5 months ago 00:10:49 1
5 months ago 00:08:56 1
5 months ago 00:20:12 8
5 months ago 00:20:00 1
6 months ago 00:35:44 1
6 months ago 00:10:20 1
6 months ago 01:20:51 1
6 months ago 00:07:05 1
6 months ago 00:31:12 1
6 months ago 01:44:07 1
7 months ago 01:06:22 1
7 months ago 01:31:34 1
7 months ago 00:14:14 2
7 months ago 00:11:16 6
7 months ago 00:37:26 8
7 months ago 00:11:12 1
7 months ago 08:20:49 1
8 months ago 00:06:19 1
8 months ago 00:33:00 1
8 months ago 00:11:23 1
8 months ago 00:12:12 1
8 months ago 00:04:55 7
8 months ago 00:00:31 1
