This meter kit comes with a Basic pH meter, epoxy body sealed reference combination electrode with a BNC connector and a 2 ½’ cable, pH buffers 4 and 7, deionized water, instructions and a 9V battery. All components are contained in a slim, protective case. The pH meter is lightweight, simple to operate and works with any electrode with a BNC connector. It has large 7/8” digits, measures from 0 to 14 pH and has a 0.01 pH resolution. The meter has ± 0.07 pH accuracy between pH 5 to 9 and ±0.2 pH accuracy below pH 5 and above pH 9. It features 2 point calibration, a hold function, fold-out easel back and a tripod screw. pH meter dimensions: 19.5 x 6.8 x 3 cm. Case dimensions: 28 x 19 x 6.3 cm. Warranty: 5 years.