DFrobot Gravity Analog pH Sensor Meter Kit V2

This analog pH Meter V2 has been specifically developed to measure the pH level of solutions and water, reflecting the degree of acidity or alkalinity. It is widely used in various applications such as aquariums, aquaponics, aquaculture and environmental water investigations. As an improved version of the pH Meter V1, this product significantly improves the precision and user-friendliness. The built-in voltage regulator chip supports the operating voltage of 3.3 to 5.5V, which is compatible with the 5V and 3.3V microcontroller. The output signal filtered by the hardware has low jitter. The software library uses the two-point calibration method and can automatically identify two standard buffer solutions (4.0 and 7.0).  With this product and an Arduino with the appropriate software library, you can quickly build a pH meter and, for example, measure the pH level of your aquarium.

Recommended Accessory:

• Gravity 16Bit 4-Channel ADC Analog Digital Converter I2C ADS1115

Features:

• Operating voltage 3.3V to 5.5V
• Hardware filtered output signal, low jitter
• Gravity and BNC connection, plug and play, no soldering necessary
• The software library supports two-point calibration

Technical Details:  

Signal Converter Board:

• Supply voltage: 3.3 to 5.5V DC
• Output Voltage: 0 to 3.0V
• Probe connection: BNC
• Signal connection: PH2.0-3P
• Measurement accuracy: ±0.1@25℃
• Dimensions: 42 x 32mm

pH probe:

• Probe type: Laboratory grade
• Detection range: 0 to 14
• Temperature range: 5 to 60°C
• Zero point: 7±0.5
• Reaction time: <2min
• Internal resistance: <250MΩ
• Probe life: >0.5 years (depends on usage frequency)
• Cable length: 100cm 

Arduino Library: https://github.com/DFRobot/DFRobot_PH

Python Library: https://github.com/DFRobot/DFRobot_PH/tree/master/RaspberryPi/Python

Package Includes:

• 1x pH Probe (Laboratory Grade)
• 1x pH Signal Converter Board
• 1x Analog Gravity Sensor Cable
• 2x pH Standard Buffer Solution 4.0
• 2x pH Standard Buffer Solution 7.0
• 2x Waterproof Seal
• 1x Screw Cap for BNC connector
• 4x M3 * 10 Nylon Pillar
• 8x M3 * 5 Screws