So I've been debating on the tests I wanna use since I've had bad experiences with dye tests I thought I was set on digitals from here on out until I realized how cheap the dollar store brand is. I ended up buying 10 for just $10.70 making them about $1.00 a piece. I couldn't pass it up lol. Even though I went back on what I was saying, I feel like since they're so cheap they won't be any good. Has anyone ever used these dollar general brand tests before & got good accurate result? Are they bad for evap lines? How soon can you get a good result on them? Comment what brand you use & why you use it. Thanks ladies! xoxo