Accurate PH Measurement: This PH tester provides precise measurement results for your aquarium or pool water, ensuring a healthy environment for your aquatic pets Convenient Hold Function: The hold function saves the measured PH values for easy reading and comparison, making it simple to track changes in your water over time Wide Application Range: This digital PH meter is suitable for various applications, including testing the PH levels of aquariums, pools, drinking water, and more Durable ABS Construction: Made of ABS plastic , this PH tester is durable and reliable for long-term use, ensuring accurate results every time Automatic Power Off: The auto power off function helps conserve battery life, making this PH meter energy-efficient and convenient for everyday use