Water tester is dead
Either the cell batteries are dead, or the tester is. I have some cell batteries, not the right size. LR44, and according to Amazon, they are 1.5v.
$5.49 for 15 batteries on Amazon. That’s an odd number, the tester uses two batteries.
Probably kept it on last time I used it, and the batteries died. I tested it with the multi meter, but can’t remember if I figured anything out.
Those might explode.
Does Batteries Plus sell em? They might have a more reliable brand. Costs $11 for four. That’s expensive.
Ten pack for $2.39 on eBay, sold. Nice, $0.23 in eBay bucks. That is I saved $0.23, on already dirt cheap batteries.