Products for USB Sensing and Control
Products for USB Sensing and Control


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pH Phidget

ID: ADP1000_0
Recommended for new designs: This product (or a similar replacement with a compatible form, fit and function) is estimated to be available for ten years or more.

Connect a pH probe or any voltage-based probe that uses a BNC connector to your VINT port with this isolated adapter.


Quantity Available: 317

Qty Price
5 $23.75
10 $22.50
25 $20.00
50 $17.50
100 $16.25
250 $15.00
500 $13.75
1000 $12.50

The ADP1000 connects to a probe that measures pH, ORP, or other properties of a fluid. It is useful in applications involving water quality or chemistry. A probe is required to use this Phidget (see Connection & Compatibility for probes). This Phidget connects to your computer through a VINT Hub.


  • Measure pH (0-14) or voltage input (±400mV or ±2V) from the probe
  • BNC connector: connect pH, ORP, or other probes for measurement

Technical Details

  • Isolation: The VINT connector is electrically isolated from the probe connection, which allows the probe to be used in an electrically noisy solution. For example, this Phidget can be used in a tank containing pumps and other electronic equipment without any problems.


This Phidget is a smart device that must be controlled by a VINT Hub. For more information about VINT, have a look at the VINT Primer. You can use a Phidget Cable to simply and easily connect the two devices. Here's a list of all of the different VINT Hubs currently available:

Product Board
Image Part Number Price Number of VINT Ports Controlled By
HUB0000_0 $30.00 6 USB (Mini-USB)
HUB5000_0 $60.00 6 Local Network (Ethernet or Wi-Fi)
SBC3003_0 $120.00 6

Phidget Cables

Use a Phidget cable to connect this device to the hub. You can solder multiple cables together in order to make even longer Phidget cables, but you should be aware of the effects of having long wires in your system.

Product Physical Properties
Image Part Number Price Cable Length
3002_0 $2.00 600 mm
3003_0 $1.50 100 mm
3004_0 $3.00 3.5 m
3034_0 $1.50 150 mm
3038_0 $2.25 1.2 m
3039_0 $2.75 1.8 m
CBL4104_0 $1.75 300 mm
CBL4105_0 $2.00 900 mm
CBL4106_0 $2.50 1.5 m

pH/ORP Probes

The Phidgets pH/ORP Adapter can connect to one pH or ORP electrode that uses a BNC connector. The electrodes in the table below are all compatible with this adapter. If you plan on using your own electrode, we recommend that you contact Phidgets Support to determine if it will be compatible with this adapter.

Product Electrode Properties Physical Properties
Image Part Number Price Electrode Type Operating Temperature Max Exterior Tube Material
3550_0 $25.00 Combination Single-Junction (pH) 80 °C Impact Resistant Plastic
3551_0 $100.00 Combination Single-Junction (pH) 110 °C PPS Plastic
3555_0 $70.00 Combination Single-Junction (ORP) 80 °C Impact Resistant Plastic
3556_0 $110.00 Combination Single-Junction (ORP) 110 °C PPS Plastic

Part 1: Setup

Welcome to the ADP1000 user guide! In order to get started, make sure you have the following hardware on hand:

Next, you will need to connect the pieces:

  1. Connect the ADP1000 to the VINT Hub using the Phidget cable.
  2. Connect the VINT Hub to your computer with a USB cable.
  3. Connect a pH or ORP probe to the ADP1000.

Now that you have everything together, let's start using the ADP1000!.

Phidget Control Panel

In order to demonstrate the functionality of the ADP1000, the Phidget Control Panel running on a Windows machine will be used.

The Phidget Control Panel is available for use on both macOS and Windows machines.


To open the Phidget Control Panel on Windows, find the Ph.jpg icon in the taskbar. If it is not there, open up the start menu and search for Phidget Control Panel

Windows PhidgetTaskbar.PNG


To open the Phidget Control Panel on macOS, open Finder and navigate to the Phidget Control Panel in the Applications list. Double click on the Ph.jpg icon to bring up the Phidget Control Panel.

For more information, take a look at the getting started guide for your operating system:

Linux users can follow the getting started with Linux guide and continue reading here for more information about the ADP1000.

First Look

After plugging the ADP1000 into your computer and opening the Phidget Control Panel, you will see something like this:

ADP1000 Panel.jpg

The Phidget Control Panel will list all connected Phidgets and associated objects, as well as the following information:

  • Serial number: allows you to differentiate between similar Phidgets.
  • Channel: allows you to differentiate between similar objects on a Phidget.
  • Version number: corresponds to the firmware version your Phidget is running. If your Phidget is listed in red, your firmware is out of date. Update the firmware by double-clicking the entry.

The Phidget Control Panel can also be used to test your device. Double-clicking on an object will open an example.

Part 2: Using Your Phidget


The ADP1000 with a pH or ORP probe measures pH (0-14) or gets raw voltage input from the probe (±400mV or ±2V). For more accuracy, set the temperature of the solution in the software.

ADP1000 About.jpg

Explore Your Phidget Channels Using The Control Panel

You can use your Control Panel to explore your Phidget's channels.

1. Open your Control Panel, and you will find the following channels:

ADP1000 Panel.jpg

2. Double click on a channel to open an example program. Each channel belongs to a differemt channel class:

PH Sensor Input: Measures the pH from the attached probe

In your Control Panel, double click on "PH Sensor Input":

Voltage Input: Measures the raw voltage value from the attached probe

In your Control Panel, double click on "Voltage Input":


Part 3: Create your Program

1. Setting up your Programming Environment

2. Phidget Programming Basics

Part 4: Advanced Topics and Troubleshooting

How do I know what channel, serial number, or hub port to use in my program?

Before you open a Phidget channel in your program, you can set these properties to specify which channel to open. You can find this information through the Control Panel.

1. Open the Control Panel and double-click on the red map pin icon:

The locate Phidget button is found in the device information box

2. The Addressing Information window will open. Here you will find all the information you need to address your Phidget in your program.

All the information you need to address your Phidget

See the Phidget22 API for your language to determine exact syntax for each property.

Setting the Change Trigger and Data Interval

The Change Trigger is the minimum change in the sensor data needed to trigger a new data event. The Data Interval is the time (in ms) between data events sent out from your Phidget. You can modify one or both of these values to achieve different data outputs. You can learn more about these two properties here.

pH Temperature Correction

The ADP1000 automatically converts raw voltage (from the pH probe) into an extremely accurate pH reading. For even more accuracy, you can set a Correction Temperature. The Correction Temperature corresponds to the temperature of the solution you are measuring (in °C). Here are a few examples of how temperature affects the output voltage of a pH probe:


As you can see from the examples above, temperature has a greater impact on solutions that have a pH further away from 7.

If you want to monitor the temperature of your solution, you can use a thermocouple. Check out our Thermocouple Interfaces to get started. For more information about how to set a Correction Temperature, view the Phidget22 API.

My probe reading is incorrect and it fluctuates when I place my hand near it

When the probe dries out, it becomes more sensitive to interference. Even static electricity on your clothes can warp the reading. To solve the problem, immerse the probe in a buffer solution overnight.

Probe Cleaning and Maintenance

See the PH/ORP Sensor Primer for more information.

Product Specifications

Sensor Properties
Controlled By VINT
±400mV Range
Voltage Resolution 40 μV DC
Measurement Error Max ± 0.1 %
Sampling Interval Max 60 s/sample
Sampling Interval Min 50 ms/sample
Voltage Noise 65 μV DC
PHSensor Mode
pH Resolution 0.0007
Measurement Error Max ± 0.1 %
Sampling Interval Max 60 s/sample
Sampling Interval Min 50 ms/sample
pH Noise 0.0011
±2V Range
Voltage Resolution 200 μV DC
Measurement Error Max ± 0.5 %
Sampling Interval Max 60 s/sample
Sampling Interval Min 50 ms/sample
Voltage Noise 235 μV DC
Voltage Sensor
Sensor Input Impedance 1 TΩ
Number of Voltage Inputs 1
Electrical Properties
Current Consumption Min 6 mA
Current Consumption Max * 10 mA
Physical Properties
Operating Temperature Min -40 °C
Operating Temperature Max 85 °C
Customs Information
Canadian HS Export Code 8471.80.00
American HTS Import Code 8471.80.40.00
Country of Origin CN (China)

* - Varies depending on selected data interval. See the graph below for details.

Current Consumption



Product History

Date Board Revision Device Version Comment
June 20170104Product Release

Software Objects

Channel NameAPIChannel
PH Sensor Input PHSensor 0
Voltage Input VoltageInput 0


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Code Samples

Example Options


				Make your selections to display sample code.

Code Samples


PHSensor Java Android Download
PHSensor JavaScript Browser Download
PHSensor Objective-C macOS Download
PHSensor Swift macOS Download
PHSensor Swift iOS Download
PHSensor Visual Basic .NET Windows Download
PHSensor Max/MSP Multiple Download
VoltageInput Visual Studio GUI C# Windows Download
VoltageInput Java Android Download
VoltageInput Multi-Channel Example JavaScript Browser Download
VoltageInput JavaScript Browser Download
VoltageInput Objective-C macOS Download
VoltageInput Swift macOS Download
VoltageInput Swift iOS Download
VoltageInput Visual Basic .NET Windows Download
VoltageInput Max/MSP Multiple Download

Have a look at our pH/ORP interfaces:

Product Sensor Properties
Image Part Number Price Controlled By
1130_0B $30.00 Voltage Input (0-5V)
ADP1000_0 $25.00 VINT