The PH-80 is an economical and reliable pH meter that is ideal for testing applications such as hydroponics and gardening, swimming pools and spas, aquariums and reef tanks, water ionizers, drinking water, boilers and cooling towers, wastewater and more. The PH-80 measures the pH level and temperature. Features include one-touch automatic digital calibration, waterproof housing, simultaneous temperature display, sleek, lightweight design, large LCD display, automatic temperature compensation (ATC), automatic shutdown function, data retention function and low battery indicator. Each meter includes a storage solution and a single-use pH 7.0 buffer pack. The PH-80 is factory calibrated for your convenience and can be digitally calibrated easily and quickly to pH 4.0, 7.0 or 10.0 with a simple one-touch measurement process. The kit includes a cap, batteries, storage solution and a pH 7.0 buffer.