DM55-1 AC 80-300V LCD Digital Volt Meter Voltmeter US Plug Electric Pen Voltage Testers Electrical Instruments EASY TO USE & HIGHLY ACCURATE: Forget about the hassle of conventional paper Litmus pH test strips, as our handheld pH meters will read pH of any liquid you need in the simplest way, giving you an accurate value on an LCD display, without the need to look up a color shade chart. Its Auto-Calibration function of this digital pH meter makes everything simpler and sure your data are the most accurate possible  ph meter with calibration by BoxParadise be inspected on the Factory; FAST RESULTS & CONVENIENT SIZE: Measurement pH level takes a few seconds for your result to appear on the screen. Simply press "ON", stir gently and the reading will stabilize on the display in moments. Its portable pH meter and size allows you to carry it around easily in your pocket and do your measuring anywhere. Its special case will protect it whether you take it to the swimming pool, on a trip, to the beach or a picnic; SUITABLE FOR MANY USES: An accurate pH measurement is useful in many cases. If you are a food manufacturer, you maintain swimming pools or aquariums, brew your own beer or wine, or you need a professional quality test for water and other liquids, our pen-type pH meters for water will be essential for you; MONEY SAVER & SMART HEALTH PRECAUTION: Save money by not having to constantly buy disposable paper pH testers. Our electronic pH meter will even save you money on batteries, as 2 batteries needed (included) will last you for more than 500 Hours of testing. Measuring pH of foods, drinking water or the water in your swimming pool is an important precaution to protect your health + FREE Bonus for your health  e-book of recipes of fantastic smoothie for people caring for their health; COMPLETE PACKAGE WITH EVERYTHING NEEDED: With every order, you will receive our digital pH meter with automatic calibration, pH buffer powder and 2 batteries, a detailed manual with clear instructions and a convenient portable case. You can start testing immediately. If you are not completely satisfied, have no worries, you are covered with our replacement Warranty for a whole year. Our team is always available even in case you need any support after purchase.