Product Features:

This digital pen style pH meter is an ideal instrument for anywhere you may need to test pH levels.
Very accurate and durable. Measuring pH Range: 0.0 - 14.0 pH. Resolution: 0.1 pH.
Accuracy: 0.1 pH (20C)， 0.2 pH. Operating Temperature: 0 - 50C (32 - 122F).
Size: 6" x 1" x 5/8";
Meter comes with protective plastic case， PH 4.00 and PH 6.86 buffer solution， and calibration screwdriver