Total Dissolved Solids (TDS) Meter, make sure you always drink pure water! at MidnightBox

price drop
Flag this deal
What's the matter?
srborges Dec 09, 2013
Updated thanks
vote
dvinegrace83 Jan 17, 2013
oh my... sometimes i feel like i'm better off just not knowing, but this could be very useful esp if traveling.
vote
Settings