The Lascar EL-USB-LITE is a super simple, easy to use temperature data logger. The logger comes pre-set from the factory to take a sample every 30 minutes over a -10°C to +50°C (+14°F to +122°F) temperature range. Easily setup and view downloaded data by plugging the logger into a USB port on your PC and using the included free EasyLog software. The logger uses a user replaceable coin cell CR1620 battery with has a typical operating life of up to 30 days.