Gravity: 7/24 Industrial Analog pH Meter Kit for Arduino

The Gravity: Analog pH Sensor / Meter Pro Kit V2 is a reliable and easy-to-use solution for accurate pH measurement and water quality monitoring. Designed with an industrial-grade probe, stable signal output, and plug-and-play connectors, this kit is suitable for applications that require continuous and precise pH detection.

Industrial-Grade Performance

Built for long-term use, the industrial-grade pH probe supports continuous 24/7 measurement with a lifespan of more than 4380 hours, depending on water quality. This makes it suitable for demanding monitoring environments where stable performance is required.

High Accuracy Measurement

The kit provides a measurement accuracy of ±0.1 pH at 25°C. It supports two-point calibration using standard buffer solutions of pH 4.0 and pH 7.0, allowing users to calibrate the sensor easily for more accurate readings.

Stable and User-Friendly Design

The upgraded signal conversion board delivers a hardware-filtered output signal with low jitter, helping improve measurement stability. With a BNC connector, Gravity interface, and no soldering required, the kit is simple to connect and convenient to integrate into projects.

Wide Compatibility

Operating within a 3.3V to 5.5V input voltage range, the sensor is compatible with many popular control boards, including Arduino, LattePanda, and other microcontroller platforms.

 
Key Features

• Industrial-grade pH probe suitable for continuous monitoring
• Supports 24/7 operation
• Measurement accuracy of ±0.1 pH at 25°C
• Detection range from 0 to 14 pH
• Two-point calibration support using pH 4.0 and pH 7.0 buffer solutions
• Hardware-filtered output signal for stable readings
• Wide voltage input: 3.3V to 5.5V
• Gravity connector and BNC connector for plug-and-play use
• No soldering required
• Compatible with Arduino, LattePanda, and similar control boards
  Uniform board size and connector layout for easier mechanical design

Important Notes

• Keep the BNC connector and signal conversion board dry and clean. Moisture or dirt may affect input impedance and cause inaccurate measurements.
• Do not place the signal conversion board directly on wet or semiconductor surfaces. It is recommended to mount the board using the included nylon pillars to keep proper distance from the surface.
• Avoid touching the sensitive glass bulb at the end of the pH probe with hard materials. Scratches or damage may cause the electrode to fail.
• After measurement, disconnect the pH probe from the signal conversion board. Do not leave the probe connected to the board for a long time when there is no power supply.
• The probe cap contains protective liquid 3.3mol/L KCL. Some liquid may leak and form white crystals around the cap. This is normal and does not affect the probe’s lifespan or accuracy as long as protective liquid remains inside the cap.

Specifications

• Signal Conversion Board V2
• Supply Voltage: 3.3V to 5.5V
• Output Voltage: 0V to 3.0V
• Probe Connector: BNC
• Signal Connector: PH2.0-3P
• Measurement Accuracy: ±0.1 pH at 25°C
• Dimensions: 42 × 32 mm / 1.66 × 1.26 in

pH Probe

• Probe Type: Industrial Grade
• Detection Range: 0 to 14 pH
• Temperature Range: 0°C to 60°C
• Accuracy: ±0.1 pH at 25°C
• Response Time: Less than 1 minute
• Probe Life: 24/7 operation for more than 0.5 years, depending on water quality
• Cable Length: 500 cm

Package Includes

• Industrial Grade pH Probe × 1
• pH Signal Conversion Board V2 × 1
• Gravity Analog Sensor Cable × 1
• Waterproof Gasket × 2
• Screw Cap for BNC Connector × 1
• M3 × 10 Nylon Pillar × 4
• M3 × 5 Screw × 8