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


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Barometer Phidget

ID: PRE1000_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.

Precisely measure the absolute air pressures between 50 and 110 kPa with this barometer that connects to any VINT port.


Quantity Available: 1000+

Qty Price
5 $14.25
10 $13.50
25 $12.00
50 $10.50
100 $9.75
250 $9.00
500 $8.25
1000 $7.50

The Barometer Phidget is an air pressure sensor. With this Phidget you can read absolute pressure. It’s great for calculating accurate atmospheric pressure. This Phidget connects to your computer through a VINT Hub.


  • Measure absolute pressures within the range of 50kPa to 110kPa, making it great for barometer applications
  • Use as an Altimeter - Calibrate to measure changes in elevation


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

Part 1: Setup

Welcome to the PRE1000 user guide! In order to get started, make sure you have the following hardware on hand:

Next, you will need to connect the pieces:

PRE1000 Functional.jpeg
  1. Connect the PRE1000 to the VINT Hub using the Phidget cable.
  2. Connect the VINT Hub to your computer with a USB cable.

Now that you have everything together, let's start using the PRE1000!

Phidget Control Panel

In order to demonstrate the functionality of the PRE1000, 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 PRE1000.

First Look

After plugging the PRE1000 into your computer and opening the Phidget Control Panel, you will see something like this:

PRE1000 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 Barometer Phidget measures absolute pressures within the range of 50kPa and 110kPa at a resolution of 250 mPa. If you read air pressures outside this range, an error event will trigger.

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 channel:

PRE1000 Panel.jpg

2. Double click on the channel to open the example program. This channel belongs to the PressureSensor channel class:

Barometer Phidget: Measures the air pressure around the PRE1000

In your Control Panel, double click on "Barometer Phidget":


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.

How can I plot or record sensor data?

In the Phidget Control Panel, open the channel for your device and click on the Plot.jpg icon next to the data type that you want to plot. This will open up a new window:


If you need more complex functionality such as logging multiple sensors to the same sheet or performing calculations on the data, you'll need to write your own program. Generally this will involve addressing the correct channel, opening it, and then creating an Event Handler and adding graphing/logging code to it.

The quickest way to get started is to download some sample code for your desired programming language and then search google for logging or plotting in that language (e.g. "how to log to csv in python") and add the code to the existing change handler.

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.

Barometric Temperature Correction

The PRE1000 reports the absolute pressure of its surroundings; in other words, the pressure compared to a perfect vacuum. If you plan on using this sensor as a barometer, you need to convert to barometric pressure. You can use conversion calculators such as this above sea level barometer reading correction calculator to make the adjustment based on your location's elevation.

Using the PRE1000 as an Altimeter

Since the PRE1000 makes absolute pressure measurements, you could use it with a temperature sensor to measure changes in altitude, as long as you know your pressure and height to begin with. The following is the barometric formula:


is the pressure at height
is the pressure at height zero
is the molar mass of earth's air (0.0289644 kg/mol)
is the gravitational constant (9.80665 m/s^2)
is the current height
is the universal gas constant (8.3144598 J/(mol*K))
is the standard temperature in degrees Kelvin.

This formula can be rearranged for as follows:


A long-run test was performed to compare the accuracy of the PRE1000 with that of the 1141 - Absolute Gas Pressure Sensor. For 87 hours, both sensors measured the absolute air pressure indoors in the same room, with the same change sensitivity.

VINTBAR graph.jpg

As you can see, the PRE1000 is significantly less noisy. The average difference between any two successive samples for the 1141 is 237.17Pa, while for the PRE1000, it is 3.19Pa. Both sensors consistently differ by an average of 1.23kPa, but this error could be easily calibrated out due to the consistency of the offset.

Product Specifications

Board Properties
Controlled By VINT
Sensor Properties
Sensor Type Gas Pressure (Absolute)
Pressure Min 50 kPa
Pressure Max 110 kPa
Pressure Resolution 250 mPa
Pressure Noise Max * 5 Pa
Sampling Interval Max 60 s/sample
Sampling Interval Min 100 ms/sample
Electrical Properties
Current Consumption Min 25 μA
Current Consumption Max 4 mA
Physical Properties
Operating Temperature Min -40 °C
Operating Temperature Max 85 °C
Customs Information
Canadian HS Export Code 9026.20.00
American HTS Import Code 9026.20.40.00
Country of Origin CN (China)
* - Typical noise depends on data interval. At intervals above 600ms, typical noise is around 1.5 pascals. Below intervals of 150ms, measurements could have up to 5 pascals of noise. This is because oversampling reduces noise for longer data intervals.


Product History

Date Board Revision Device Version Comment
June 20170104Product Release

Software Objects

Channel NameAPIChannel
Barometer PressureSensor 0


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Code Samples

Example Options


				Make your selections to display sample code.

Code Samples


PressureSensor Visual Studio GUI C# Windows Download
PressureSensor Java Android Download
PressureSensor JavaScript Browser Download
PressureSensor Objective-C macOS Download
PressureSensor Swift macOS Download
PressureSensor Swift iOS Download
PressureSensor Visual Basic .NET Windows Download
PressureSensor Max/MSP Multiple Download

Here's a list of our gas pressure sensors:

Product Sensor Properties
Image Part Number Price Sensor Type Pressure Min Pressure Max Pressure Differential Min Pressure Differential Max Pressure Resolution
1126_1B $30.00 Gas Pressure (Differential) -25 kPa 25 kPa 55 Pa
1136_0 $32.00 Gas Pressure (Differential) -2 kPa 2 kPa 5 Pa
1137_0 $32.00 Gas Pressure (Differential) -7 kPa 7 kPa 17 Pa
1138_0 $32.00 Gas Pressure (Differential) 0 Pa 50 kPa 56 Pa
1140_1B $30.00 Gas Pressure (Absolute) 20 kPa 400 kPa 413 Pa
1141_0 $32.00 Gas Pressure (Absolute) 15 kPa 115 kPa 111 Pa
PRE1000_0 $15.00 Gas Pressure (Absolute) 50 kPa 110 kPa 250 mPa