DFRobot Gravity 7/24 Industrial Analog pH Meter Kit for Arduino & Raspberry Pi Project
DFRobot Gravity 7/24 Industrial Analog pH Meter Kit for Arduino & Raspberry Pi Project The Gravity: 7/24 Industrial Analog pH Meter Kit (SEN0169-V2) is a professional-grade water quality monitor designed for continuous, real-time pH measurement in demanding environments. This upgraded version significantly improves precision and user experience compared to its predecessor. The kit includes an industrial-grade pH probe that supports 24/7 monitoring with a lifespan exceeding 4380 hours, ensuring consistent performance even in harsh conditions. The onboard voltage regulator chip supports a wide voltage supply range of 3.3V to 5.5V, making this industrial pH sensor compatible with both 5V and 3.3V main control boards such as Arduino, Raspberry Pi, and LattePanda. Its hardware-filtered output signal delivers low jitter for stable readings. What sets this Arduino pH meter apart is its exceptional accuracy of ±0.1 pH at 25°C and user-friendly calibration process. The software library adopts a two-point calibration method that can automatically identify standard buffer solutions (4.0 and 7.0), making the setup process simple and convenient. The industrial pH combination electrode features a sensitive glass membrane with low impedance, providing fast response times and good thermal stability. With its linear output voltage across the 0 to 14 pH range and excellent anti-pollution performance, this continuous pH measurement system is ideal for long-term online detection in applications such as aquaponics, aquaculture, chemical monitoring, and environmental water testing. Features Supports 24/7 continuous monitoring with lifespan exceeding 4380 hours. High measurement accuracy of ±0.1 pH at 25°C for precise readings. Two-point calibration using standard buffer solutions (4.0 and 7.0). Wide operating voltage range of 3.3V to 5.5V for versatile compatibility. BNC connector and Gravity interface for easy plug-and-play setup. Industrial pH probe with sensitive glass membrane and low impedance. Measurement range of 0 to 14 pH for comprehensive testing capabilities. DFRobot Gravity 7/24 Industrial Analog pH Meter with Arduino Connection Diagram Important Notes: Keep the BNC connector and signal conversion board dry and clean. Moisture can lower the input impedance, causing inaccurate readings. If damp, dry them before use. Do not place the signal conversion board on wet or conductive surfaces. This may affect accuracy. Use nylon standoffs to mount it, maintaining a gap between the board and the surface. The glass tip of the pH probe is delicate. Avoid contact with hard surfaces. Scratches or cracks can damage the probe. After use, disconnect the pH probe from the signal board. Do not leave it connected when the board is powered off for long periods. The probe cap contains protective liquid (3.3mol/L KCL). Some leakage and white crystal formation around the cap is normal. As long as there’s still liquid inside, the probe will remain accurate. You can return the crystals to the cap if needed.
- Professional industrial pH sensor with 24/7 continuous monitoring capability for demanding environments.
- Features high-precision signal conversion board with measurement accuracy of ±0.1 pH at 25°C.
- Long-lasting electrode with lifespan exceeding 4380 hours for reliable continuous pH measurement.
- Compatible with Arduino, Raspberry Pi, and LattePanda through wide voltage range of 3.3V to 5.5V.
- Two-point calibration method using standard buffer solutions (4.0 and 7.0) for accurate readings.
- Ideal water quality monitor for aquaculture, hydroponics, and environmental water testing.
- Plug-and-play design with BNC connector and Gravity interface for quick and easy setup.
- Perfect Arduino pH meter for students, hobbyists, and professionals requiring precise pH monitoring.
- 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 × 1.26 in
- Probe Type Industrial Grade
- Detection Range 0~14
- Temperature Range 0~60°C
- Accuracy ±0.1pH @ 25°C
- Response Time <1 min
- Probe Life 7×24 hours, >0.5 years (depends on water quality)
- Cable Length 500 cm