Thermo Spot™ Series

Self-Adhesive Surface Temperature Monitoring Labels for Electrical Equipment

The Thermo Spot™ series are self-adhesive, surface temperature monitoring labels for plugs, adaptors and extension sockets. Using a patented Thermochromic technology, these easily installed labels provide a permanent color-changing visual indicator of electrical overload or deterioration. This pre-emptive fault indication provides an early warning through visual indication before any type of failure or fire occurs.

Elevated Temperature Indication

Provides 24/7 monitoring and visual indication to the naked eye of elevated temperatures

Protection for Homes & Businesses

Ideal for both everyday use and as part of regular electrical inspections for safety and reliability

Quick & Easy to Install

Simply adhere to the outside of a plug, adaptor, or extension socket with direct visibility


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Pre-Emptive Fault Indication

Thermo Spot™ labels offer pre-emptive fault indication through a visual color change, providing an early warning system before any potential failure or fire occurs. This proactive approach aids in preventing critical incidents.

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Patented Thermochromic Technology

These labels utilize patented Thermochromic technology, ensuring a reliable and permanent color-changing visual indicator in response to temperature changes. This technology enhances safety by monitoring electrical overload or deterioration.

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Permanent Color-Changing Visual Indicator

The labels provide a permanent color-changing visual indicator, allowing users to easily spot signs of electrical issues and take necessary actions before any serious problems or fires can develop, ensuring safety and equipment integrity.

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Self-Adhesive Design

The Thermo Spot™ series features a user-friendly self-adhesive design, allowing easy installation on plugs, adaptors, and extension sockets without the need for additional adhesives or complicated mounting processes.


Physical Properties
Adhesive TypeAcrylic
Covering FilmPolyester
Response Time2 to 5 seconds
Color Change MaterialNon-toxic, white crystalline solid on a red absorbent backing, adhered with acrylic adhesive
Activation Temperature52˚C / 126˚F
Tolerance-/+ 1 ˚C
Recommended StorageStore at room temperature & humidity (i.e. 16 to 27˚C / 60 to 80˚F & 40 to 60% RH)
Service Life3 years (if installed as per datasheet guidance)
*Installation: Peel the Thermo SpotTM label from the backing paper. Apply to a dust & grease free surface. Apply onto plastic external surfaces of electrical plugs, adaptors, extension sockets or household sockets. Ensure that the labels are applied to a surface that will be visible when in use. Endeavor to not touch, scratch or damage the surface of the label. The Indicator spot will change color from pink to red if the surface temperature reaches 52˚C setpoint. If a label turns Red (alert temperature) switch off appliance and seek advice from a competent electrician. For indoor use only.
*Caution: These labels are designed for use only on the external plastic surfaces of electrical plugs, adaptors, extension sockets, household sockets and general electrical equipment.

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