Products for USB Sensing and Control

Products for USB Sensing and Control


Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
+1 403 282-7335

Isolated Thermocouple Phidget

ID: TMP1100_0

Connect one K, J, E or T type thermocouple to this Phidget to measure the temperature of the air, an object, or a liquid.


Quantity Available: 479

Qty Price
5 $28.50
10 $27.00
25 $24.00
50 $21.00
100 $19.50
250 $18.00
500 $16.50
1000 $15.00

When you need to measure extreme temperatures beyond the range of ordinary sensors, or when you need to measure temperatures in enclosed spaces or in liquids, a thermocouple is just what you're looking for. With one VINT port on your hub, you can interface a J, K, E or T type thermocouple, chosen in software and converted to degrees Celsius automatically (See the "Compatible Products" tab for a list of VINT Hubs). If you have other thermocouple types, you can open the channel in VoltageInput mode and convert to Celsius manually using a formula; See the User Guide for more information.

Long Wires

One of the major advantages of using a thermocouple is the capability of using long wires. Thermocouples have been known to work with segments as long as 100m, while USB and other sensors suffer from voltage drops after 5 or 10m. You can find thermocouple extension wire on the Compatible Products tab. Please note that the longer you make your thermocouple wires, the more likely it is that you'll experience noise and interference. For more information, see our document on Addressing Electromagnetic Interference.

Isolated for Stability

This Phidget is electrically isolated, allowing you to measure electrically noisy solutions (for examplle, a tank of water that has an electric pump running inside it). If you don't need isolation and want more thermocouples per VINT port, have a look at the "Other Thermocouple Boards" tab.

Product Specifications

Controlled By VINT
Number of Thermocouple Inputs 1
Thermocouple Input
Thermocouple Voltage Resolution 1 μV DC
Thermocouple Voltage Noise 6 μV DC
Thermocouple Error Max (K-Type) ± 2 °C
Thermocouple Temperature Resolution (K-Type) 0.01 °C
Sampling Interval Min 20 ms/sample
Sampling Interval Max 60 s/sample
Onboard Temperature Sensor
Temperature Error Max ± 1 °C
Sampling Interval Max 60 s/sample
Sampling Interval Min 300 ms/sample
Temperature Error Typical (At 25°C) ± 0.25 °C
Temperature Max 85 °C
Temperature Min -40 °C
Temperature Resolution 0.06 °C
Electrical Properties
Current Consumption Max 17 mA
Physical Properties
Recommended Wire Size 16 - 26 AWG
Operating Temperature Min -40 °C
Operating Temperature Max 85 °C

Software Objects

Channel NameAPIChannel
Thermocouple Input TemperatureSensor 0
Temperature Sensor (IC) TemperatureSensor 1
Voltage Input VoltageInput 0


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Library & Driver Downloads

Code Samples

TemperatureSensor C Multiple Download
TemperatureSensor C# Windows Download
TemperatureSensor Java Multiple Download
TemperatureSensor JavaScript Any Download
TemperatureSensor Objective-C macOS Download
TemperatureSensor Python Multiple Download
TemperatureSensor Visual Basic .NET Windows Download
VoltageInput C Multiple Download
VoltageInput C# Windows Download
VoltageInput Java Multiple Download
VoltageInput JavaScript Any Download
VoltageInput Objective-C macOS Download
VoltageInput Python Multiple Download
VoltageInput Visual Basic .NET Windows Download


Product History

Date Board Revision Device Version Comment
June 20170103Product Release

Getting Started

Welcome to the TMP1100 user guide! In order to get started, make sure you have the following hardware on hand:

Next, you will need to connect the pieces:

TMP1100 Functional.jpeg
  1. Connect the thermocouple to the inputs on the TMP1100. The datasheet or product page for the thermocouple should tell you which wire is positive and which is negative.
  2. Connect your device to your VINT Hub using the Phidget cable.
  3. Connect the VINT Hub to your computer.

Now that you have everything together, let's start using the TMP1100!

Using the TMP1100

Phidget Control Panel

In order to demonstrate the functionality of the TMP1100, 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. If you would like to follow along, first 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 TMP1100.

First Look

After plugging the TMP1100 into your computer and opening the Phidget Control Panel, you will see something like this:

TMP1100 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.

Temperature Sensor (IC)

Double-click on the Temperature Sensor object , labelled Temperature Sensor (IC), in order to run the example:

TMP1100 TemperatureSensorIC Example.jpg

General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • Modify the change trigger and/or data interval value by dragging the sliders. For more information on these settings, see the data interval/change trigger page.
  • The measured temperature can be seen next to the Temperature label. Cover the board with your hands to see the temperature quickly rise.

Temperature Sensor (Thermocouple)

Double-click on the Temperature Sensor object, labelled Thermocouple Input, in order to run the example:

TMP1100 TemperatureSensorThermocouple Example.jpg

General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • Modify the change trigger and/or data interval value by dragging the sliders. For more information on these settings, see the data interval/change trigger page.
  • Select your thermocouple type from the Thermocouple Type drop-down menu.
  • The measured temperature will be updated next to the Temperature label. Touch the thermocouple wire with your hands to see the temperature increase. If the temperature decreases when it should be increasing, you may have the wires plugged in incorrectly.

Voltage Input

Double-click on the Voltage Input object in order to run the example:

TMP1100 VoltageInput Example.jpg

General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • Modify the change trigger and/or data interval value by dragging the sliders. For more information on these settings, see the data interval/change trigger page.

Technical Details

Cold Junction Compensation and Self-heating

Thermocouples consist of two junctions, one where the thermocouple meets the Phidget and one where the two wires are welded together at the sensing end of the device. In simplified terms, a thermocouple works by detecting the temperature difference between these two junctions. As such, in order to measure the temperature at the sensing end we need to know the temperature where the thermocouple connects to the Phidget. To do so, there is an ambient temperature sensor on the board.

An important thing to note is that the ambient temperature sensor measures the temperature of the board and the air around it, though not specifically at the junction. Generally you can assume they are nearly the same temperature, however as the electronics heat up by being powered on there can be some small error introduced. This is exacerbated by having the board in an enclosed space where normal airflow is restricted thereby increasing the effect of self-heating. As a result we recommend that the board be left in as open and well ventilated/cooled a place as possible to minimize this error source.

Current Consumption

A graph of the TMP1100's current consumption can be viewed below:


At the shortest data interval (20ms), it consumes around 17mA of current. At longer intervals, it dips to around 14mA. When the device is unconfigured or closed, it consumes approximately 4mA of current. Closing the object and reopening it can provide significant power savings for applications where the temperature only needs to be measured occasionally.

Channel Configuration

Temperature Object
Channel 0 Thermocouple Input 0
Channel 1 Ambient Temperature
Voltage Object
Channel 0 Voltage Input 0

For more information on thermocouples, check out the Thermocouple Primer.

What to do Next

  • Software Overview - Find your preferred programming language here to learn how to write your own code with Phidgets!
  • General Phidget Programming - Read this general guide to the various aspects of programming with Phidgets. Learn how to log data into a spreadsheet, use Phidgets over the network, and much more.
  • Phidget22 API - The API is a universal library of all functions and definitions for programming with Phidgets. Just select your language and device and it'll give you a complete list of all properties, methods, events, and enumerations that are at your disposal.

Thermocouple Accessories

Here are some handy accessories for working with thermocouples. Extension wire, adapters, and plugs can be found here.


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
HUB0000_0 $30.00 6
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


You can connect one J,K,E or T type thermocouple to this Phidget. See the product page or data sheet for the thermocouple to determine which end plugs into the positive terminal on the Phidget. If you're not sure which end is which, it won't harm anything to try both configurations to determine which one is right. If the thermocouple is hooked up backward, you'll get erratic readings and the temperature will decrease when it should be increasing.

Product Temperature Sensor
Image Part Number Price Thermocouple Type Ambient Temperature Min Ambient Temperature Max Ambient Temperature Error Max
3108_2 $30.00 K -50 °C 700 °C ± 0.75 °C
TMP4103_0 $5.00 K -40 °C 200 °C ± 0.75 °C
TMP4104_0 $10.00 K -40 °C 400 °C ± 0.75 °C
TMP4106_0 $16.00 K -40 °C 400 °C 3.3 °C
TMP4107_0 $16.00 K -40 °C 400 °C 3.3 °C

Have a look at our thermocouple interfaces:

Product Board Thermocouple Input
Image Part Number Price Controlled By Number of Thermocouple Inputs Thermocouple Voltage Resolution
1048_0 $100.00 USB 4 1.5 μV DC
1051_2 $60.00 USB 1 24.2 μV DC
TMP1100_0 $30.00 VINT 1 1 μV DC
TMP1101_0 $35.00 VINT 4 1 μV DC