Pharmaceuticals and laboratories
Vaccines, medicines, biological materials, samples and clinical trial shipments.
Product range / Cold chain indicators
Cold chain indicators
Labels and indicators that permanently show whether a shipment has become too warm or too cold. No batteries or readers are needed — simply check the indicator window on receipt.
Practical applications
Temperature monitoring in transport and the cold chain
Temperature indicators for chilled shipments help you assess deliveries of medicines, samples and food quickly. They show exposure to excessive heat, cold or freezing without downloading logger data or using a dedicated reader.
Food and flowers
Meat, fish, dairy products, chocolate and temperature-sensitive products.
Cold chain logistics
Monitoring last-mile deliveries, insulated packaging and air freight.
Full product range details
Temperature Indicators for Chilled Shipments | LC KOLOR
Cold chain monitoring lets you quickly check whether medicines, vaccines, biological samples or food have been exposed to temperatures outside the specified range. A single-use indicator placed inside the packaging gives the recipient a clear result without opening software or using a specialist reader.
A break in the vaccine cold chain (+2…+8 °C) may reduce the vaccine's effectiveness, and the facility must demonstrate that it was stored correctly. An indicator inside the packaging confirms transport conditions, while a temperature logger in the refrigerator documents on-site storage.
WarmMark records excursions above the temperature threshold together with exposure time, while ColdMark, ColdSNAP and FreezeSafe indicate excessive cold or freezing. ColdChain Complete monitors both upper and lower limits, while QR variants make it easier to record checks using a smartphone.
Time-temperature indicators (threshold excursions)
4 products
WarmMark
Time-temperature indicator for chilled shipments
How it works
A single-use label that turns red when the selected temperature threshold is exceeded, then shows how long the excursion lasts. Three windows indicate Brief, Moderate and Prolonged heat exposure, helping you determine whether the product is still safe. Activate it by pulling out the tab. The WarmMark range replaces the discontinued Chillchecker indicators — unlike those indicators, it shows not only that the temperature threshold was exceeded, but also for how long.
Application and use
When both a temperature excursion and the duration of heat exposure matter. Activate the indicator according to the instructions for the selected variant and place it next to the monitored product or on its packaging. Select the threshold and monitoring duration before dispatch.
- Thresholds from −18 °C to +37 °C (including −18, 0, 5, 8, 10, 20, 25, 26, 30, 37 °C)
- Three time windows: e.g. at 20 °C — 2 h, 12 h and 48 h
- Single-window versions: 8 °C/8 h, 8 °C/12 h, 25 °C/8 h, 26 °C/48 h
- No batteries or reader required, ready to use
Technical specifications — WarmMark(8)
| Indication | irreversible colour change from white to red |
|---|---|
| Accuracy | +1 °C |
| Shelf life | 2 years from the date of sale |
| Dimensions | 46 × 19 × 1.5 mm |
| Activation | manual, by pulling out the tab |
| Storage | cool, dark conditions, 35–55% RH |
| Attachment | acrylic adhesive, apply above 10 °C |
| Adhesive temperature resistance | −40 °C to 121 °C |
Data based on the manufacturer's documentation. Full datasheets are available in the documentation below.
Manufacturer documentation (original, EN)(1)
Original manufacturer documentation (in English).
Manufacturer's video
Product FAQ
Frequently asked questions
What is WarmMark best suited to?
When both a temperature excursion and the duration of heat exposure matter.
How do I select the right WarmMark?
When selecting an indicator, specify the permissible temperature threshold, transit time, activation conditions and whether a digital record is required. Key features of this solution include thresholds from −18 °c to +37 °c (including −18, 0, 5, 8, 10, 20, 25, 26, 30, 37 °c) and three time windows: e.g. at 20 °c — 2 h, 12 h and 48 h.
WarmMark Long-Run
Heat indicator for long, multi-day journeys
How it works
A version with a five-stage time scale, designed for shipments in transit for several days. The red bar advances further the longer the temperature threshold is exceeded — from several hours to a week.
Application and use
For long journeys and storage where temperature excursions may last from many hours to several days. Activate the indicator according to the instructions for the selected variant and place it next to the monitored product or on its packaging. Select the threshold and monitoring duration before dispatch.
- WL 10/50 (10 °C) and WL 31/88 (31 °C) versions
- Five time markers: 12, 30, 60, 110 and 168 hours
- For sea freight, air freight and long-distance road transport
- Battery-free, visual reading on receipt
Technical specifications — WarmMark Long-Run(4)
| Indication | irreversible colour change from white to red |
|---|---|
| Accuracy | +1 °C |
| Dimensions | 98.1 × 19 × 1.5 mm |
| Shelf life | 2 years from the date of sale |
Data based on the manufacturer's documentation. Full datasheets are available in the documentation below.
Manufacturer documentation (original, EN)(1)
Original manufacturer documentation (in English).
Product FAQ
Frequently asked questions
What is WarmMark Long-Run best suited to?
For long journeys and storage where temperature excursions may last from many hours to several days.
How do I select the right WarmMark Long-Run?
When selecting an indicator, specify the permissible temperature threshold, transit time, activation conditions and whether a digital record is required. Key features of this solution include wl 10/50 (10 °c) and wl 31/88 (31 °c) versions and five time markers: 12, 30, 60, 110 and 168 hours.
WarmMark Duo
Two temperature thresholds on one indicator
How it works
An indicator that monitors two temperature thresholds simultaneously: excursions above 10 °C with duration measured in days, and excursions above 34 °C indicated within half an hour. One indicator replaces two separate indicators.
Application and use
When a single shipment needs simultaneous detection of excessive heat and dangerously low temperatures. Activate the indicator according to the instructions for the selected variant and place it next to the monitored product or on its packaging. Select the threshold and monitoring duration before dispatch.
- WD 10-34 version: 10 °C and 34 °C thresholds
- Time windows at 10 °C: 3 days, 8 days and 14 days
- Separate 34 °C window that responds within 30 minutes
- For medicines, biological samples and sensitive food products
Technical specifications — WarmMark Duo(4)
| Indication | irreversible colour change from white to red |
|---|---|
| Accuracy | +1 °C |
| Dimensions | 98.1 × 19 × 1.5 mm |
| Shelf life | 2 years from the date of sale |
Data based on the manufacturer's documentation. Full datasheets are available in the documentation below.
Manufacturer documentation (original, EN)(1)
Original manufacturer documentation (in English).
Product FAQ
Frequently asked questions
What is WarmMark Duo best suited to?
When a single shipment needs simultaneous detection of excessive heat and dangerously low temperatures.
How do I select the right WarmMark Duo?
When selecting an indicator, specify the permissible temperature threshold, transit time, activation conditions and whether a digital record is required. Key features of this solution include wd 10-34 version: 10 °c and 34 °c thresholds and time windows at 10 °c: 3 days, 8 days and 14 days.
WarmMark QR
Heat indicator with cloud recording via smartphone scan
How it works
The same proven WarmMark label, now with a QR code. A standard smartphone captures the indicator status and the date, time and location of the scan, then sends the data to the SpotSee cloud. No app installation is required.
Application and use
When you need a simple smartphone reading and a digital record of where and when the check took place. Activate the indicator according to the instructions for the selected variant and place it next to the monitored product or on its packaging. Select the threshold and monitoring duration before dispatch.
- Smartphone reading, no app or batteries required
- Records date, time, location and serial number
- Reports in the SpotSee cloud, compliance with 21 CFR Part 11
- Clear colour change from white to red
Manufacturer documentation (original, EN)(1)
Original manufacturer documentation (in English).
Manufacturer's video
Product FAQ
Frequently asked questions
What is WarmMark QR best suited to?
When you need a simple smartphone reading and a digital record of where and when the check took place.
How do I select the right WarmMark QR?
When selecting an indicator, specify the permissible temperature threshold, transit time, activation conditions and whether a digital record is required. Key features of this solution include smartphone reading, no app or batteries required and records date, time, location and serial number.
Low-temperature indicators
3 products
ColdMark
Low-temperature indicator
How it works
An indicator that permanently changes from clear to violet when a shipment cools below the permissible temperature. It helps you decide whether to accept or reject a delivery without electronics or software.
Application and use
For detecting excessively low temperatures and the risk of freezing in transit. Activate the indicator according to the instructions for the selected variant and place it next to the monitored product or on its packaging. Select the threshold and monitoring duration before dispatch.
- Thresholds: −3 °C, 0 °C, 2 °C, 5 °C, 10 °C
- Irreversible, unambiguous colour change
- Low-cost last-mile monitoring
- Supports validation of chilled packaging
Technical specifications — ColdMark(3)
| Accuracy | ±1 °C |
|---|---|
| Shelf life | 2 years from the date of sale |
| Activation | automatic when the temperature drops below the threshold |
Data based on the manufacturer's documentation. Full datasheets are available in the documentation below.
Manufacturer documentation (original, EN)(1)
Original manufacturer documentation (in English).
Manufacturer's video
Product FAQ
Frequently asked questions
What is ColdMark best suited to?
For detecting excessively low temperatures and the risk of freezing in transit.
How do I select the right ColdMark?
When selecting an indicator, specify the permissible temperature threshold, transit time, activation conditions and whether a digital record is required. Key features of this solution include thresholds: −3 °c, 0 °c, 2 °c, 5 °c, 10 °c and irreversible, unambiguous colour change.
ColdSNAP
Mechanical freeze indicator with a monitoring window
How it works
A compact, self-adhesive indicator (formerly Telatemp ColdSNAP) that permanently records a temperature drop below a set limit — the window changes from clear to bright red. ColdSNAP+ versions monitor both cold and excessive heat.
Application and use
For permanent mechanical confirmation that the temperature has dropped below the selected threshold. Activate the indicator according to the instructions for the selected variant and place it next to the monitored product or on its packaging. Select the threshold and monitoring duration before dispatch.
- Thresholds from −20 °C to +15 °C
- Bimetallic sensor with ±2 °C accuracy
- ColdSNAP+ version with cold and heat monitoring
- Activated by pulling out the tab
Product FAQ
Frequently asked questions
What is ColdSNAP best suited to?
For permanent mechanical confirmation that the temperature has dropped below the selected threshold.
How do I select the right ColdSNAP?
When selecting an indicator, specify the permissible temperature threshold, transit time, activation conditions and whether a digital record is required. Key features of this solution include thresholds from −20 °c to +15 °c and bimetallic sensor with ±2 °c accuracy.
FreezeSafe QR
Freeze indicator with smartphone reading
How it works
A low-temperature indicator combined with a QR code. The colour change immediately alerts the recipient, while a smartphone scan records the status, time, location and serial number in the SpotSee cloud.
Application and use
For monitoring freezing, with the option to record the result by scanning the QR code. Activate the indicator according to the instructions for the selected variant and place it next to the monitored product or on its packaging. Select the threshold and monitoring duration before dispatch.
- Thresholds: 0 °C, 2 °C, 5 °C, 10 °C, 15 °C
- No batteries, readers or apps required
- No pre-cooling required before application
- Permanent colour change from clear to purple when the temperature drops below the threshold
- Data from every scan stored in the SpotSee cloud
- Applications: medicines, biological materials, clinical trials, food
Manufacturer documentation (original, EN)(2)
Original manufacturer documentation (in English).
Manufacturer's video
Product FAQ
Frequently asked questions
What is FreezeSafe QR best suited to?
For monitoring freezing, with the option to record the result by scanning the QR code.
How do I select the right FreezeSafe QR?
When selecting an indicator, specify the permissible temperature threshold, transit time, activation conditions and whether a digital record is required. Key features of this solution include thresholds: 0 °c, 2 °c, 5 °c, 10 °c, 15 °c and no batteries, readers or apps required.
Dual-condition indicators and sets
2 products
ColdChain Complete
Heat and cold indicator set on a single card
How it works
A ready-to-use indicator set that shows exposure to both excessive heat and cold in one place. Available as a larger non-adhesive card or a compact XS version with a self-adhesive backing.
Application and use
When a single shipment requires simultaneous monitoring of excessive heat and cold. Activate the indicator according to the instructions for the selected variant and place it next to the monitored product or on its packaging. Select the threshold and monitoring duration before dispatch.
- Monitoring of upper and lower temperature excursions in one set
- Two formats: ColdChain Complete card and self-adhesive XS version
- Irreversible evidence of transport conditions
- Applications: medicines, laboratory and biological samples, tissues, chocolate, flowers
Manufacturer documentation (original, EN)(1)
Original manufacturer documentation (in English).
Manufacturer's video
Product FAQ
Frequently asked questions
What is ColdChain Complete best suited to?
When a single shipment requires simultaneous monitoring of excessive heat and cold.
How do I select the right ColdChain Complete?
When selecting an indicator, specify the permissible temperature threshold, transit time, activation conditions and whether a digital record is required. Key features of this solution include monitoring of upper and lower temperature excursions in one set and two formats: coldchain complete card and self-adhesive xs version.
SpotCheck
Reversible indicator of current temperature
How it works
A large, round window shows the current ambient temperature: the colour changes from blue through green to reddish-brown. The change is reversible, so the label acts as a simple visual signal of the storage temperature range.
Application and use
For repeated checks of the current temperature range during storage. Activate the indicator according to the instructions for the selected variant and place it next to the monitored product or on its packaging. Select the threshold and monitoring duration before dispatch.
- 2–8 °C scale for chilled products
- 15–25 °C scale for room-temperature products
- SpotCheck 2–8 °C: blue below 2 °C, green at 2–8 °C, reddish-brown above 8 °C
- SpotCheck 15–25 °C: blue below 15 °C, green at 15–25 °C, reddish-brown above 25 °C
- Green indicates the correct range
- Applications: medicines, blood, diagnostic reagents, storage validation, packaging with cooling packs
- Custom temperature ranges available
Product FAQ
Frequently asked questions
What is SpotCheck best suited to?
For repeated checks of the current temperature range during storage.
How do I select the right SpotCheck?
When selecting an indicator, specify the permissible temperature threshold, transit time, activation conditions and whether a digital record is required. Key features of this solution include 2–8 °c scale for chilled products and 15–25 °c scale for room-temperature products.
Special-purpose labels
1 product
IATA labels with temperature indicators
Required IATA 2–8 °C marking with a colour indicator
How it works
The label combines mandatory IATA air freight marking for 2–8 °C shipments with a reversible colour indicator that immediately shows whether the package is within the safe range. Priced like a standard label.
Application and use
For clearly marking air freight shipments maintained at 2–8 °C. Activate the indicator according to the instructions for the selected variant and place it next to the monitored product or on its packaging. Select the threshold and monitoring duration before dispatch.
- Compliant IATA 2–8 °C marking
- Reversible indicator using leuco dye
- No devices, apps or batteries required
- For pharmaceuticals, biotechnology and food
Manufacturer's video
Product FAQ
Frequently asked questions
What is IATA labels with temperature indicators best suited to?
For clearly marking air freight shipments maintained at 2–8 °C.
How do I select the right IATA labels with temperature indicators?
When selecting an indicator, specify the permissible temperature threshold, transit time, activation conditions and whether a digital record is required. Key features of this solution include compliant iata 2–8 °c marking and reversible indicator using leuco dye.
Questions to consider before choosing
Frequently asked questions
Which temperature indicator should I choose for a chilled shipment?
WarmMark indicators monitor excessive heat, while ColdMark or FreezeSafe detect temperatures that are too low. ColdChain Complete is a convenient option when both upper and lower limits need monitoring.
Does a temperature indicator require a reader?
Most indicators provide a clear colour change and require neither power nor a reader. QR variants can also be scanned with a standard smartphone.
Free quotation
Enquire about: Cold chain indicators
We help you choose the right variant and threshold for your application — we usually prepare a quotation within 1 working day. You can also call: +48 22 666 82 95.
Other product groups
See also
Thermax temperature indicator strips
Eight temperature-sensitive zones for a permanent temperature record.
Liquid crystal thermometers
Reversible Digi-Temp® thermometers — horizontal and vertical, with 7, 8, 10, 13 and 16 segments, plus the Digi-Temp® EZ series.
Hygiene, sterilisation and food safety
Indicators for dishwashers, thermal disinfection and food temperature checks.
Thermochromic labels and liquid crystals
Temperature-responsive colours: labels, sheets and inks.
Thermochromic paints and pigments
Paints, pigments and coatings that change colour with temperature.
Medical and blood donation solutions
Forehead thermometers and indicators for medicines and blood containers.
Temperature and humidity data loggers
USB data loggers with PDF reports for dry ice, pasteurisation and humidity monitoring.
ShockWatch shock indicators
Single-use ShockWatch impact indicators for shipments and products.
Shock recorders and condition monitors
ShockLog, gView and SpotBot — impact, vibration and environmental monitoring.
TiltWatch tilt indicators
TiltWatch — check whether shipments stayed upright in transit.