Milwaukee pH55 pH/Temp Meter
Please note that electrodes must be rinsed after use and stored in electrode storage solution to ensure proper function of the meter. Storage solution is available in 230 ml bottles.
It works good as expected for the price. You must soak it before use and store it in storage solution between uses so make sure you also order storage solution when purchasing this meter. I also store my meter inside the included cap with storage solution to prevent evaporation like others have suggested. The cap is slightly rounded for some reason so you will need something like a coffee cup to hold it upright while storing it between use.