DFRobot SEN0161-V2 Gravity: Analog pH Sensor/Meter Kit V2

This DFRobot SEN0161-V2 Analog pH Sensor Kit is specifically designed to measure the pH of a solution and reflect its acidity or alkalinity.

The pH is a value that represents the acidity or alkalinity of a solution, also known as the hydrogen ion concentration index. The pH is a scale of hydrogen ion activity in a solution. pH has a wide range of uses in medicine, chemistry, and agriculture. Usually, the pH is a number between 0 to 14. Under thermodynamic standard conditions, pH=7, which means the solution is neutral; a pH<7 means the solution is acidic; a pH>7 means the solution is alkaline.

As an upgraded version of pH meter V1, this product greatly improves the precision and user experience. The onboard voltage regulator chip supports the wide voltage supply of 3.3 to 5.5V, which is compatible with 5V and 3.3V main control boards. The free software library adopts the two-point calibration method, and can automatically identify two standard buffer solutions (4.0 and 7.0), making beginner experiments simple and convenient.

With this product, a main control board (such as Arduino), and the software library, you can quickly build a pH meter, plug and play, with no soldering required.

Features:

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

Specifications:

• Signal Conversion Board (Transmitter) V2:
• Supply voltage: 3.3 to 5.5V
• Output voltage: 0 to 3.0V
• Probe connector: BNC
• Signal connector: PH2.0-3P
• Measurement accuracy: ±0.1@25℃
• Dimensions: 42 x 32mm (1.66 x 1.26in.)

• pH probe:
• Probe type: Laboratory Grade
• Detection range: 0 to 14
• Temperature range: 5 to 60°C
• Zero point: 7 ±0.5
• Response time: <2min
• Internal resistance: <250MΩ
• Probe life: >0.5 years (depending on frequency of use)
• Cable length: 100cm

Kit contains:

• pH Probe (Laboratory Grade) x1
• pH Signal Conversion Board x1
• Gravity Analog Sensor Cable x1
• pH Standard Buffer Solution 4.0 x2
• pH Standard Buffer Solution 7.0 x2
• Waterproof Gasket x2
• Screw Cap for BNC Connector x1
• M3 x 10 nylon pillar x4
• M3 x 5 screw x8