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Package design

How color changes

Cold chain indicator stick. Break it with a starter to go. Can be stored at ambient temperature.

Temperature range:-20~9℃
RoHS Compliant

Stick type cold chain indicator which is stored at ambient temperature. Indicator ink is capsulized in a glass vial which is covered with a plastic stick. The capsule comes with a special jig to activate the indicator before use. 

Reversible Irreversible Semi-reversible


  • Detects temperature rise in freezer or refrigerator temp. zone and provides indication by a color change to red.
  • Designed to be frozen before use and bent with supplied tool for activation.
  • Simple activation even in a frozen environment.
  • Easier to use than a data logger.


Product line up

Type Temp
Precool Color Size JAN Code
CMー 9 ー18℃ or lower
7.5φ×75mm 4582130423301
CMー 3 4582130423318
CMーM4 -4 4582130423325
CMーM10 -10 ー25℃ or lower
CMーM15 -15 ー40℃ or lower
CMーM20 -20 4582130423356


How to use

  1. Take out a CRYOMARK™ indicator from the bag and precool it at -18℃ or lower (at -25℃ or lower for CM-M10) for at least 12 hours.
  2. Use supplied tool to bend CRYOMARKTM.
  3. Place CRYOMARKTM near product whose temperature is to be monitored.

Precaution for use

  • To activate the CRYOMARK™ temperature indicator, use always the dedicated activation tool. If you activate CRYOMARK™ with a different procedure, it may not function normally.
  • Please use this tool at the designated temperature ranges (-40℃ to 40℃) at ordinary pressrue.
  • Please do not disassemble products to take contents.
  • Please do not repeat freeze/thew cycles. The indicator may be unintentionally activated.
  • CRYOMARK™ which has already changed color may be discolored by the effect of temperature and UV-lays.
  • The leakage may happen if the colored CRYOMARK™ is stored for a longer period at room temperature. Please dispose of it after the color change.
  • CRYOMARK™ may not change color in a short-time temperature rise less than 1 hour.
  • CRYOMARK™ may not be used in liquid such as antifreeze liquid, water, and oil, nor at certain conditions, such as in pressurized or depressurized area, a microwave oven, boilin water and fire.
  • Unused products can change color if dropped off or get an impact.
  • The color-change is tested under the test conditions of us. The color-change or no color-change of CRYOMARK™ do not provide any guarantees on the quality of the products which are packed in the same box.
  • The expiry date is three years after production date.
  • The varidated period is 28 days after activation.


*THERMOLABEL, RETOMARK, MEDESHILL, UVLABEL, DEWLABEL and Thermo-Paint in all the contents including digital catalog in this website are registered trademarks in Japan of NiGK Corporation.

THERMOLABELis registered trademark of NiGK Corporation, in Japan,New Zealand and Philippines.

THERMOLABELisregistered trademark of NiGK Corporation, in Japan,Australia,European Union and Switzerland.


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