Description :

– DFRobot Gravity: Analog pH meter V2 is a device designed to measure the pH of a solution and reflect its acidity or alkalinity
– It is commonly used in various applications such as aquaponics, aquaculture, and environmental water testing
– It is an upgraded version of pH meter V1, which greatly improves precision and user experience
– Onboard voltage regulator chip supports a wide voltage supply of 3.3~5.5V, which is compatible with 5V and 3.3V main control boards
– Output signal is filtered by hardware and has low jitter
– Software library adopts a two-point calibration method and can automatically identify two standard buffer solutions (4.0 and 7.0)
– Can be quickly built with a main control board (such as Arduino) and software library, with no welding required
– DFRobot provides a variety of water quality pH analog sensor products, with uniform size and interface, suitable for various water quality testing and DIY multi-parameter water quality testers
– pH is a value that measures acidity or alkalinity of a solution, also known as hydrogen ion concentration index
– pH is a scale of hydrogen ion activity in a solution and has a wide range of uses in medicine, chemistry, and agriculture
– pH is usually a number between 0 and 14, with 7 being neutral, less than 7 being acidic, and greater than 7 being alkaline
– Attention:
•BNC connector and signal conversion board must be kept dry and clean to avoid inaccurate measurements
•Signal conversion board cannot be placed on wet or semiconductor surfaces
•Sensitive glass bubble in the head of the pH probe should avoid touching hard materials
•Disconnect the pH probe from the signal conversion board after completing the measurement
•Bottle cap of the probe contains protective liquid (3.3mol/L KCL) and some liquid may leak, forming white crystals, but this will not affect the life and accuracy of the probe.

– Features:

•3.3~5.5V wide voltage input
•Hardware filtered output signal, low jitter
•Gravity connector and BNC connector, plug and play, no welding
•The software library supports two-point calibration and automatically identifies standard buffer solution
•Uniform size and connector, convenient for the design of mechanical structures

– Specifications:

1.Signal Conversion Board (Transmitter) V2:
•Supply Voltage: 3.3~5.5V
•Output Voltage: 0~3.0V
•Probe Connector: BNC
•Signal Connector: PH2.0-3P
•Measurement Accuracy: ±0.1@25℃
•Dimension: 42mm*32mm/1.66*1.26in
2.pH Probe:
•Probe Type: Laboratory Grade
•Detection Range: 0~14
•Temperature Range: 5~60°C
•Zero Point: 7±0.5
•Response Time: <2min
•Internal Resistance: <250MΩ
•Probe Life: >0.5 years (depending on the frequency of use)
•Cable Length: 100cm