Review on 🔍 Seachem Ammonia Alert 1 Year Monitor (3 Pack): Reliable Water Quality Monitoring Solution by Gladys Aranjo

a few reads I wasn't sure what was going on - half the line is missing on normal mode and the other half of the line is missing on low alert. I assume this means the reading was halfway between the two readings - a chemical reading was taken and it was. I've only tried this a couple of times but so far the accuracy has been correct, wish I had it for nitrite too.