ITEM NAME:Digital PH Meter Water PH Tester Pen Waterproof Aquarium Water ORP/PH Meter #gib Store Home Promotion Hot Item Add to Fav.Laboratory pH testing, for aquariums, swimming pools, and tap water. Range: 0.0-14.0PH. Resolution: 0.1pH. Accuracy: ±0.1pH. Applicable fresh water and sea water. Electric source: 3 x 1.5V(AG-13 button cell).
