Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month
Good tester, easy to calibrate and operate. It provides persistent measurement results. Very good to use for aqua/aeroponics or fish keeping. It comes with calibration solutions ( dry, just add water to produce solutions).
I had to purchase 2 of them, cos first i received had senser damaged, so te pen just does not work properly. Second one is just OK and works great. I'd like to have better english user guide.
excellent price, overal quality is over averge. After calibration it is very easy to operate: turn on, put in the solution, get result. As easy as this.
Very good product to be used in whatever application you like.
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