Buy from Amazon.com : http://best.waitmejapan.com/?asin=B071V8BT5J<br /><br /> pH Meter Jellas High Accuracy 001 Resolution Digital pH Meter pH Water Tester for Lab Use<br /><br />Product Description : <br />WIDE USE its great for home and laboratory uses water pools aquariums spas hydroponics food wine and beer making and more<br />FAST AND RELIABLE READING Highly accurate for measuring range of 0-14 PH 01 PH resolution measure display pH result simultaneously with LCD display reliable and quick reading<br />EASE OF USE you just remove the protective cap and immerse the PH meter electrode in the solution and turn on the PH by ON OFF switch to be measured Beats the heck out of trying to see the colors of a litmus strip<br />POCKET SIZE its only 176 oz with size of 594122079 inches it also comes with a carry case for you easily to carry or store<br />PACKAGE CONTENTS 1 pH Meter 1 Carrying case 1 Calibration screwdriver 2 pH buffer powder for calibration 1 User manual