10 oz is a nice Harvest, I like anything that I can get a half a pound from.I buy a new meter every year, I find those that have the replaceable probe tips the tips cost just about as much as meters I buy and then you have to replace the tips every year anyway. So by getting a new meter every year I get fresh batteries I get a new probe tip it basically I think there's a way to go.
I guess if you had one permanently in place you know like with a big Reservoir then a bluelab might make a lot of sense.