DescriptionDFRobot Gravity: Analog pH meter V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. It is commonly used in various applications such as aquaponics, aquaculture, and environmental water testing.As an upgraded version of Analog pH Sensor Kit, this product greatly improves the precision and user experience. The onboard voltage regulator chip supports the wide voltage supply of 3.3~5.5V, which is compatible with 5V and 3.3V main control board. The output signal filtered by hardware has low jitter. The software library adopts the two-point calibration method, and can automatically identify two standard buffer solutions (4.0 and 7.0), so simple and convenient. You may also check Liquid Sensor Selection Guide to get better familiar with our liquid sensor series.With this product, the main control board (such as Arduino), and the software library, you can quickly build the pH meter, plug, and play, no welding. DFRobot provides a variety of water quality sensor products, uniform size, and interface, not only meet the needs of various water quality testing but also suitable for the DIY of multi-parameter water quality tester.The pH is a value that measures the acidity or alkalinity of the solution. It is also called the hydrogen ion concentration index. The pH is a scale of hydrogen ion activity in solution. The pH has a wide range of uses in medicine, chemistry, and agriculture. Usually, the pH is a number between 0 to 14. Under the thermodynamic standard conditions, pH=7, which means the solution is neutral; pH<7, which means the solution is acidic; pH>7, which means the solution is alkaline.FEATURES3.3~5.5V wide voltage inputHardware filtered output signal, low jitterGravity connector and BNC connector, plug and play, no weldingSoftware library supports two-point calibration and automatically identifies standard buffer solutionUniform size and connector, convenient for the design of mechanical structuresSPECIFICATIONSignal Conversion Board (Transmitter) V2Supply Voltage: 3.3~5.5VOutput Voltage: 0~3.0VProbe Connector: BNCSignal Connector: PH2.0-3PMeasurement Accuracy: ±0.1@25℃Dimension: 42mm*32mm/1.66*1.26inpH ProbeProbe Type: Laboratory GradeDetection Range: 0~14Temperature Range: 5~60°CZero Point: 7±0.5Response Time: <2minInternal Resistance: <250MΩProbe Life: >0.5 years (depending on the frequency of use)Cable Length: 100cmDOCUMENTSProduct wikiMore DocumentsSHIPPING LISTpH Probe(Laboratory Grade) x1pH Signal Conversion Board x1Gravity Analog Sensor Cable x1pH Standard Buffer Solution 4.0 x2pH Standard Buffer Solution 7.0 x2Waterproof Gasket x2Screw Cap for BNC Connector x1M3 x 10 nylon pillar x4M3 x 5 screws x8
