Ensure the proper pH and chlorine levels in your pool or aquarium with the 2-in-1 PH Chlorine Meter PC-101. This handy device provides quick and accurate measurements, helping you maintain a safe and hygienic environment for your aquatic friends. Made of premium plastic, durable and lightweight, this tester is easy to operate and requires no additional chemicals. The large screen displays pH and chlorine levels for easy reading, ensuring precise results every time. Simply pop in a 1.5V AA battery (not included), and you're ready to go. Keep your water quality in check and your occupants healthy with this essential testing device.