Customer Message - Coronavirus *** Updated 26 October 2020 ***

We are continuing to process and dispatch orders as normal and goods will be sent using your requested delivery service. However, we understand that customers in certain areas may experience some minor delivery delays due to courier workloads. Please bear this in mind when placing an order.

We would like to thank all our customers who have continued to use our services and worked with us throughout this difficult time.

Test Caps

Simply plug in the desired test cap and the display on the thermometer should show the same temperature as the certified value, you can therefore be assured that your instrument is calibrated and is reading correctly.

1 Item(s)

per page

1 Item(s)

per page


Further Information

Test caps help to ensure that thermometers are reading accurately. Each cap is calibrated to replicate a specific temperature point. The cap is attached to the thermometer in place of the probe.

If the thermometer is correctly calibrated it will display the temperature of the test cap.