The Cryopak CTL is a contactless temperature data logger that works in conjunction with a mobile app. With a line-of-sight of approximately 30.5 meters, this compact device can record temperatures within a shipment as low as -30C up to as high as 65C. The CTL has two logging modes, a 16KB memory, and comes with either an internal or external sensor. Five LEDs indicate the available temperature thresholds (High-High, High, OK, Low, and Low-Low), with additional LEDs for Status and RF Module. A p