Apera PH60S-Z Smart pH Spear Pocket Tester is the next-generation product designed for seamless pH test experience in food test and other solid/semi-solid sampling tests such as cheese, meats, sushi rice, fruits, vegetables, cosmetics, etc. Just connect the tester to your smartphone with Bluetooth in the ZenTest mobile App (free download in Apple and Google Play App Store), you will be just a few taps away from performing professional pH tests. Cloud-based data management system – allows you to record, manage, and share your test data at your finger tips, and never have to worry about data loss.Comprehensive Information Display – 4 types of measurement display modes to serve you in different situations. Upgraded replaceable pH probe – The Swiss Spear pH probe now becomes even more durable: the new double-junction blue sensor significantly reduces the chance of a clogged junction and contamination, significantly increases the probe's service life.Hybrid design – your smartphone’s battery running low? No worries. This product can be used as a classic tester even without connecting to a smartphone. Everything in a portable carrying case: PH60S-Z tester, calibration solutions (pH 7. 00, pH 4. 00), calibration bottles, storage solution, a lanyard, 4* AAA batteries (pre-installed), and a quick-start manual. There are a bunch of other exciting functions for you to discover in the ZenTest App.