Pocket pH tester LPPT-A10 Pocket pH tester LPPT-A10 comes with 0.0 to 14.00 pH range. Its has round glass shape pH electrode. This pH tester has 2 points push button calibration system to automatically identify pH buffer. It is suitable for measuring pH of liquids, solutions. Pocket pH meter is user friendly in nature & its waterproof performance protects the integrity of the instrument in harsh conditions.