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WarmMark® Mini Ascending Short-Run Temperature Indicators (2 Hour)

WarmMark® Mini Ascending Short-Run Temperature Indicators (2 Hour)

Regular price £1.20 GBP
Regular price Sale price £1.20 GBP
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Description

WarmMark® Mini Ascending Short-Run Temperature Indicators (2 Hour)

WarmMark® Mini indicators provide clear, irreversible visual evidence that a package has been exposed to temperatures above a defined threshold for a short period. The Mini format is ideal for small parcels, sample packs, vials, cartons, or individual units where space is limited but temperature compliance still matters.

WarmMark® Mini indicators are supplied in minimum order quantities and are intended for professional validation, qualification, and controlled temperature monitoring applications.


How It Works

WarmMark® Mini indicators use a calibrated chemical reaction to detect cumulative temperature exposure above the rated threshold. When exposure above that threshold occurs for long enough to represent a meaningful excursion, the indicator changes permanently, providing a simple visual record that an out-of-spec temperature event has occurred.

These Mini variants are designed for a short monitoring window (2 hour format), making them suitable for time-critical shipments, last-mile delivery, or short-duration handling risk.


Available Thresholds (2 Hour Format)

  • 8 °C / 46 °F
  • 25 °C / 77 °F

Typical Applications

  • Pharmaceutical and diagnostic samples
  • Clinical and laboratory logistics
  • Temperature-sensitive consumables and components
  • Last-mile delivery and short-duration handling risk
  • Small packages, vials, and cartons where space is limited

Key Features

  • Compact Mini format for small packages and individual units
  • Irreversible visual indication of temperature excursion
  • No batteries, electronics, or calibration required
  • Simple to deploy and easy to interpret on receipt
  • Supports QA documentation, acceptance checks, and accountability

Use & Handling Clauses

  • Placement: Apply to a clean, dry surface where the indicator can be inspected on receipt. Avoid placement where it may be rubbed, crushed, or obscured.
  • Activation & Interpretation: The indicator provides a visual indication that the rated threshold has been exceeded. It does not record the exact time, duration, or maximum temperature reached.
  • One-Time / Irreversible: Activation is permanent and intended for one-time monitoring. Indicators cannot be reset or reused.
  • Environment: Avoid conditions outside intended use (e.g., direct sunlight, heaters, chemical vapours, or persistent condensation) that could affect readability.
  • Inspection & Records: Inspect and record status at dispatch and on receipt. Photographing the indicator in situ is recommended for quality records.
  • Suitability & Liability: Indicators do not prevent excursions or guarantee product condition. Users must validate suitability for their application, packaging design, and SOPs.

Compliance & Manufacturing

WarmMark® indicators are manufactured by SpotSee®, a global leader in condition-monitoring solutions, trusted worldwide for quality assurance and cold-chain integrity verification.


Stock Availability & Lead Times

WarmMark® indicators are manufactured by SpotSee® and supplied subject to availability. Stock levels may vary by threshold and format. While some variants may be available for immediate dispatch, others may require additional lead time.

If you have a specific delivery requirement, are placing a larger quantity order, or need confirmation of availability for a particular variant, please contact us before ordering so we can confirm current stock levels and lead times.

Shipping & Delivery

We ship worldwide using trusted partners, with same-day dispatch on orders placed before 1 pm (subject to stock) and free UK delivery on orders over £50.

Every order is tracked, carefully packed, and arrives in excellent condition — with biodegradable packaging used wherever possible.

Shop with confidence with easy returns and exchanges!

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What Our Customers Say

Great experience from start to finish. The materials were top quality and added a unique touch to our product launch. Arrived on time and well-packaged.
James T
Fantastic service and even better products. The colour change effects are so cool and exactly what we needed. Can’t wait to use them again for future designs!
Amelia K
Really impressed with the colour-changing inks! They worked perfectly for my project and the customer service was super helpful. Fast delivery too — highly recommend
Sophie R

Frequently Asked Questions

Who are Colour Changing ?

Colour Changing is a global pioneer in smart materials, specialising in advanced colour-changing technologies for over 30 years. Founded by Jeremy Dredge, we’ve grown from a family business into an international enterprise with facilities in the UK and Spain, delivering innovative, science-backed solutions worldwide.

What technologies do you offer ?

Our core technologies include thermochromic, photochromic, and hydrochromic inks, paints, and coatings — materials that change colour with temperature, light, or moisture. Every product is developed to the highest standards of quality and performance.

How do you support businesses ?

We help businesses enhance safety, efficiency, and customer engagement through:

  • Intelligent supply chain indicators (shock, tilt, temperature)
  • Covert product authentication features
  • Interactive, eye-catching packaging
  • Memorable promotional products
How do you help creatives and designers ?

Our materials power innovation in:

  • Interactive art that responds to viewers and the environment
  • Product designs with dynamic colour-changing effects
  • Fashion items that shift with light and temperature
What makes Colour Changing different ?

Our team blends science, design, and decades of experience to deliver bespoke, high-performance smart materials. We're driven by innovation and collaboration, helping clients turn creative ideas into real-world impact.

Do you offer custom solutions and support ?

Absolutely. We collaborate closely with clients to develop tailored solutions, offering R&D, material sourcing, consultancy, and support from concept to installation.