DFRobot Gravity: 24/7 Industrial Analog pH Sensor Kit

The DFRobot Gravity 24/7 Industrial Analog pH Sensor Kit is built for long-term, continuous water quality monitoring. Its industrial-grade probe is rated for over 4,380 hours of continuous measurement, depending on water conditions, which makes this pH sensor a good fit for aquaponics, aquaculture, hydroponics and automated monitoring systems.

Key features

• Industrial probe for 24/7 continuous measurement
• 0 to 14 pH range with ±0.1 pH accuracy at 25°C and under 1 minute response
• 5m cable lets you place the probe well away from your controller
• Upgraded transmitter with hardware-filtered, low-jitter 0 to 3.0V analog output
• BNC probe connector and Gravity 3-pin interface, no soldering
• DFRobot library with two-point calibration that recognizes pH 4.0 and 7.0 buffers

Specifications

• Range: 0 to 14 pH
• Accuracy: ±0.1 pH at 25°C
• Response time: Under 1 minute
• Output: 0 to 3.0V analog
• Supply voltage: 3.3 to 5.5V
• Cable: 5m
• Probe life: Over 4,380 hours continuous, water dependent

Works with

Arduino and ESP32 via an analog input. Raspberry Pi needs an external ADC.

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