1、Lightweight and portable, easy to carry and convenient for indoor and outdoor use. 2、The pH meter adopts high quality material, which is sturdy and durable for long time use. 3、Waterproof metal electrode ensures more accurate measurement, stable and high reliability. 4、Easy to use, insert the probe into the liquid to be tested and press the button for pH testing. 5、0.01pH high accuracy, it can measure PH value and water temperature at the same time, convenient to use. 1 x pH Meter (Battery Not Included)1 x User Manual2 x Calibration Solution1 x Screwdriver Condition: 100% Brand NewItem Type: pH MeterMaterial: PlasticModel: ph-009Measuring Range: 0.0- 14.0pH 0-50℃Resolution: 0.01pHAccuracy: ± 0.01pH (at 20℃)Battery: 4 x 1.5V AG-13 Button Battery (Not Included)Working Environment: 0-50℃ RH﹤95%Temperature Compensation: 0-50℃Weight: Approx. 226g / 8oz