Customer Message - Disruption due to Coronavirus *** Updated 01/06/20 ***

We are currently operating with a minimum of essential staff. Whilst we continue to dispatch orders, we would be grateful if customers would bear with us. Orders are being dealt with on a strict first come first served basis, but we cannot guarantee dispatch or delivery will meet our usual standards.

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.