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WarmMark2 Indicators

WarmMark2 Time/Temperature Indicator

ADHESIVE-BACKED TAGS RECORD WARMING TEMPERATURES FOR SHIPPING AND STORAGE

Designed to visually show when an ascending temperature breach has occurred. Simply squeeze the blister to activate and begin monitoring your product. A distinctive white to blue color change informs you if your product quality may have been compromised.

See the WarmMark2 Activation Instructions to properly activate this indicator.

3TM Specifications
Accuracy ±1°C / 2°F
Shipping No special packaging required for shipping
Storage Store in a cool dark environment. Recommended 22°C / 72°F at 20 - 80% RH
Shelf Life 2 years from date of shipment if stored in recommended environment
Preconditioning Must be preconditioned at a temperature higher than the threshold to be successfully activated - see activation instructions.
Presentation Self-adhesive backing on release liner
Dimensions 0.75 x 1.57 x 0.01 in. / 19mm x 40mm x 0.5mm, Activation blister depth 0.12 in. / 3.0mm max

WarmMark2 Run-Out Time* Comparison Chart
Part Number Threshold Temperature Stop Temp** Run-Out Window Time Marks in Hours Activation Blister Location
WM2 -20/-4 -20°C / -4°F -25°C / -13°F 8 hours 1/2, 1, 2, 4, & 8 Top
WM2 -14/7 -14°C / +7°F -20°C / -4°F 24 hours 1, 2, 4, 8, 12, & 24 Top
WM2 0/32 0°C / 32°F -7°C / 19°F 48 hours 1, 2, 4, 8, 12, 24, & 48 Bottom
WM2 3/37 3°C / 37°F -2°C / 32°F 48 hours 2, 4 Top
WM2 5/41 5°C / 41°F 0°C / 32°F 8 hours 1, 2, 4, & 8 Top
WM2 8/46 8°C / 46°F 6°C / 43°F 8 hours 1, 2, 4, 8, 12, 24, & 48 Bottom
WM2 10/50 10°C / 50°F 8°C / 46°F 48 hours 1, 2, 4, 8, 12, 24, & 48 Bottom
WM2 20/68 20°C / 68°F 18°C / 64°F 48 hours 1, 2, 4, 8, 12, 24, & 48 Bottom
WM2 24/75 24°C / 75°F 18°C / 64°F 8 hours 1/2, 1, 2, 4, & 8 Top
WM2 30/86 30°C / 86°F 25°C / 77°F 8 hours 1, 2, 4, & 8 Top
WM2 38/100 38°C / 100°F 34°C / 93°F 8 hours 1/2, 1, 2, 4, & 8 Top
*Time required for the device to expend when exposed to a constant temperature of 2°C above the response temperature. The higher the exposure temperature is above the response temperature, the faster the run-out time.
**Important user note, for proper performance of this time/temperature indicator, see the WarmMark2 Activation Instructions.