General description The 4-in-1 pH Meter is a versatile tool designed for checking water quality across various applications, including faucets, hot tubs, homebrewing, indoor soil, aquariums, hydroponics, and swimming pools. Its compact and lightweight design makes it easy to carry, ensuring you can monitor pH levels wherever you go. Technical specifications Measurement range: 0.00 to 14.00 pH Resolution: 0.01 pH Accuracy: ±0.01 pH Display: Blue backlit LCD Installation No tools are needed for calibration. Simply remove the protective cap and immerse the pH meter electrode in the solution. Usage Press "ON/OFF" to turn on the pH meter. Stir gently and wait a few seconds for the reading to stabilize. Ideal for testing the pH of drinking water, aquariums, swimming pools, spas, or hydroponics.