DescriptionThis item is suitable for testing pH balance of drinking water, pools, aquariums, RO system, Spas, hydroponics food, wine and beer making and more. When calibrating, you just need to place the instrument in standard buffer and press the CAL button.Features- Color: Yellow.- Material: Plastic.- Size: 16.5 x 6 x 2 cm.- Widely Use for home and laboratory uses; Suitable for testing pH balance of drinking water, pools, aquariums, RO system, Spas, hydroponics food, wine and beer making and more.- Using two points type automatic calibration. The instrument automatically starts calibration data.- Convenient to carry, easily read the results with its bright LCD back light display.- Apply in all water quality testing, aquarium, swimming pools, waste water regulation,hydroponics, laboratory and scientific testing.- No more need to take care about the temperature of testing liquid, as ph meter has built in (ATC) automatic temperature compensation.