Gravity: Analog pH Sensor / Meter Pro Kit V2

SKU: SEN0169-V2 Brand: DFRobot
DFRobot Gravity: Analog pH meter pro V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. It is commonly used in...
$104.95 AUD, inc GST
$95.41 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Tue, 15th of Oct

Quantity Discounts:

  • 5-10 $92.55 (exc GST)
  • 10+ $90.64 (exc GST)
- +

5 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

Shipping:

  • $7+ Standard (5+ days*, tracked)
  • $11+ Express (2+ days*, tracked)
  • FREE Pickup (Newcastle only - must order online*)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

DFRobot Gravity: Analog pH meter pro V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. pH sensors are commonly used in various applications such as aquaponics, aquaculture, and environmental water testing.

As an upgraded version of pH meter pro V1, the secondary generation pH meter pro greatly improves the precision and user experience. The onboard voltage regulator chip is compatible with both 5V and 3.3V logic from the main control board. The output signal is filtered by hardware and has low jitter. The software library adopts the two-point calibration method, and can automatically identify two standard buffer solutions (4.0 and 7.0) making calibration simple and convenient. It uses an industry-style electrode and has a built-in simple, convenient, practical connection and long life, very suitable for online monitoring.

This industry-style pH combination electrode is made of a sensitive glass membrane with low impedance. It can be used in a variety of pH measurements with fast-response, good thermal stability, and reproducibility, and nearly eliminates alkali error. Between 0 to 14 pH range, the output voltage of the electrode is linear. The reference system which consists of the Ag/AgCl gel electrolyte salt bridge has a stable half-cell potential and excellent anti-pollution performance. The ring PTFE membrane is not easy to clog, so the electrode is suitable for long-term online detection.

With this product, the main control board (such as an Arduino), and the software library, you can quickly build the pH meter, plug-and-play. DFRobot provides a variety of water quality sensor products, uniform size, and interface, not only meet the needs of various water quality testing but also suitable for the DIY of multi-parameter water quality tester.

The pH is a value that measures the acidity or alkalinity of the solution. It is also called 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 between 0 to 14. Under thermodynamic standard conditions pH is 7, which means the solution is neutral; pH < 7 means the solution is acidic, and pH > 7 means the solution is alkaline.

Attention:

1. The BNC connector and the signal conversion board must be kept dry and clean, otherwise, it will affect the input impedance, resulting in an inaccurate measurement. If it is damp, it needs to be dried carefully to avoid damage.

2. The signal conversion board cannot be directly placed on a wet or semiconductor surface, otherwise, it will also affect the input impedance, resulting in an inaccurate measurement. It is recommended to use the nylon pillar to fix the signal conversion board to allow a certain distance between the signal conversion board and the surface.

3. The sensitive glass bubble in the head of the pH probe is delicate. Any damage or scratches will cause the electrode to fail.

4. After completing a measurement, disconnect the pH probe from the signal conversion board to avoid extended exposure with the sample while power is applied, as this may damage the probe.

SEN0161-V2-Connection

Arduino Connection Diagram

Features

  • Voltage: 3.3~5.5V
  • Hardware filtered output signal provides low jitter
  • Plug-and-play Gravity and BNC connectors
  • The software library supports two-point calibration and automatically identifies standard buffer solutions at pH 7.0 and 4.0

Specifications

Signal Conversion Board (Transmitter) V2

  • Supply Voltage: 3.3~5.5V
  • Output Voltage: 0~3.0V
  • Probe Connector: BNC
  • Signal Connector: PH2.0-3P
  • Measurement Accuracy: ±0.1@25°C
  • Dimension: 42mm x 32mm / 1.66" x 1.26"

pH Probe

  • Probe Type: Industrial Grade
  • Detection Range: 0~14
  • Temperature Range: 0~60°C
  • Accuracy : ± 0.1pH (at 25°C) 
  • Response Time: <1min
  • Probe Life: 24/7 > 0.5 years (approximation, depending on the water quality)
  • Cable Length: 5m

Documents

Parts List

  • pH Probe (Industrial Grade) x1
  • pH Signal Conversion Board V2 x1
  • Gravity Analog Sensor Cable x1
  • Waterproof Gasket x2
  • Screw Cap for BNC Connector x1
  • M3 * 10mm nylon pillar x4
  • M3 * 5mm screws x8

This product is listed in:

Sensors>Kits
Sensors>pH

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

  • $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
  • $7+ for Standard Post (typically 6+ business days, tracked)
  • $11+ for Express Post (typically 2+ business days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $12+ for Pack and Track (3+ days, tracked)
  • $16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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