Freeze Watch Indicators are ideal for monitoring pharmaceutical products -including vaccines, medicines and chemicals that run the risk of being damaged when exposed to freezing temperatures during shipment and storage. The patented design of Freeze Watch indicators consists of highly sensitive indicating liquid inside a specially designed ampule. When exposed to freezing temperatures, the ampule fractures, releasing a liquid. The liquid irreversibly stains a paper behind the ampule, indicating that product has been exposed to unacceptable temperatures so product quality testing should be performed.
Requires Special Packaging and Expedited Shipping Sold in pack of 100
NOTE: Due to temperature sensitivity, this product does not qualify for free shipping, requires additional packaging, heat packs, and must be shipped Next Day Air. Expect to be contacted if we receive an order that does not fulfill these requirements.
+/- 2°F (+/- 1°C) typical
°F and °C
Type of Sensor
Chemical / Descending
Sensor Wire Length
Stripped Leads Length
Number of Measuring Points
Number of Events
Number of Sensors
Min/ Max Memory
L x W x Thickness: 2.25" x 1.5" x 0.25"
Certificate of Conformance ( $ Extra )
5 Years from date of manufacture
Store in a controlled environment at 5°C~32°C(41°F~90°F), 20 to 60% relative humidity, is suggested
Part Number: THGSEN002
Trigger Temperature: 25°F (-4°C)
Shelf Life Four Years from Date of Manufacture
Dimensions2.25" x 1.5" x 0.25" (LxWxThickness)
StorageRecommended 5°C to 32°C
Peel-off liner is attached to the indicator so it can be easily attached to product in transit.