PH Digital Water Meter TDS Water Test Pen TDS Meter EC Meter Temperature Meter 3 in 1 for Drinking Water Tap Water Hydroponics Aquariums Swimming Pool

Description:   A pH value of 7 means a substance is neutral. The lower value indicates acidity, and a higher value is a sign of alkalinity. To better understand the range in pH, take a look at these examples: apple juice 3, orange juice 3.5, coffee 5.5, milk 6.2, baking soda 8.5, soap water 10, bleach 12.   Super accurate, reliable and easy to use TDS, EC &Temp water tester reader, with backlight and auto-lock function.Equipped with backlight LCD for easy reading. If TDS?40, the backlit color is green, if TDS>40, the backlight color is red.   From test beginning, the reading can be stabilized in seconds and locked automatically for easy read and record.Before reading locked automatically, the reading can be locked manually if press “HOLD”.   Our pens can widely be used for many application of Water Quality Testing: Pure water production and drinking, tap water, well water, sea water, fish tank water, swimming pool water, etc.   Please dry the pen tip with a dry cloth and put the pen back into the pen holder after use.   Package Included: 1*TDS pen, 1*instruction, 1*pH pen, 1*instruction, 3 bags of pH buffer power