Waterproof PDF Disposable USB 2.0 Temperature Data Logger 60 Days Cold Chain Thermometer Recorder for Biological/Medicine Chemical Industry

Features:
High measurement precision 0.5℃/0.9℉, range: -30℃~70℃(-22℉~158℉).
With timing output protection, output voltage protection output current protection.
Offline data storage, line resistance measurement and support TYPE-C.
Monitor and record the temperature of cold chain logistics for temperature sensitive goods.
With alarm function, visual alarm when temperature exceeds the limit.
One button to start and stop data logging.
USB 2.0, easy to connect with a computer to get PDF report directly.
NOTE:
Press and hold the button until the green LED lights to start/stop logging. If the green LED do not light after pressing and holding the button for about 5sec., please do not use this data logger. This is a single use data logger, so must make sure it's correct to start/stop. When logging, one of the LEDs will flash once every 10sec.