4-in-1 Digital pH Meter, 4-in-1 pH Tester, pH Meter with LCD Screen, High-Precision Resolution 0.01, Water Quality Tester for Drinking Water, Swimming

💧【4 in 1】To check the quality of your water, whether it comes from a tap, a hot tub, a homemade infusion, an indoor floor, an aquarium, a hydroponics or a swimming pool. In addition, the PH tester pens are small in size, light in weight and easy to carry when you go out. 💧【High Accuracy】The pH meters range from 0.00 to 14.00 (PH). PH resolution is 0.01 pH, accuracy ± 0.01 pH, blue backlit LCD display for reliable and fast readings. 💧【EASY TO CALIBRATION】The pH tester automatically calibrates in three points). You don't need any tools; Simply remove the protective cap and immerse the pH meter electrode in the solution. Press "ON/OFF" to turn on the electronic pH meter, stir gently and wait a few seconds until the reading stabilizes. 💧【EASY TO USE】 The pH tester features a self-calibration function so you can get a reading quickly.💧【Wide Applications】 A single calibration powder can be easily stored in a drawer, bag, or suitcase for convenient portability. It is ideal for testing pH balance in drinking water, aquariums, swimming pools, spas, orhydroponic systems.