---
title: "Thermocouple sensor"
url: "https://cma-science.com/product/thermocouple-sensor/"
type: "product"
published: "2025-05-14T13:52:42+01:00"
modified: "2026-08-19T16:46:50+01:00"
author: "Tom van Raaij"
---

The sensor uses a thermocouple type K. The thermocouple consists of Chromega (Nickel – Chromium) and Alomega (Nickel – Aluminium) wires that are welded together at one end to form a measuring (hot) junction. The other ends of the wires form the so-called cold junction.

The thermocouple sensor can be used for temperature experiments in physics and chemistry. (the sensor is quick and precise).

**Technical specifications**:

- Measurement ranges: -20 to 110 °C / -200 to 1300 °C
- Resolution: 0.035 °C / 0.39 °C
- Wire length: 95 cm
- Wire diameter: 0.51 cm
- Maximum measurement frequency: 100 kHz (CoachLab II+, WiLab) / 1 MHz (VinciLab 2)
- Warranty: 3 years

All technical specifications of the thermocouple sensor are described in the product manual, see downloads.

**Examples of applications for the wide temperature range (-200 .. 1300 °C)**:

- Measurements of the temperature inside a Bunsen burner flame or candles
- Experimentally determine the melting point of copper, bismuth, or other solids

**Examples of applications for the narrow temperature range (-20 .. 110 °C)**:

- Measuring freezing and boiling points
- Specific heat experiments
- Measurement of vaporization heat (using a piece of tissue wrapped around the measuring joint, moistened with water or alcohol)
- Measurement of respiration
- Measurement of skin temperature

The Thermocouple can be directly connected to the analog BT inputs of the CMA interfaces.
 **Attention:** The sensor cable BT – IEEE1394 needed to connect the sensor to an interface is **not** supplied with the sensor and has to be purchased separately (CMA Art. Nr BTsc_1 or BTsc_1Short).