The Lec Medical LCD advanced temperature data logger is an easy to use, USB temperature data logger that monitors and records the internal temperature of your fridge. This advanced data logger is designed with a high contrast LCD display that shows a variety of temperature data. The logger can store up to 16,385 temperature readings (up to 22 years if set at the maximum log rate, and 3.5 months at the minimum) and has a measurement range of -35C to +80C. The advanced data logger is accurate to 0.5C for precise measurement of data. The data logger also logs the surrounding temperature at a user set parameter between 10 seconds to 12 hours and can be programmed to suit the users needs. This data logger is moister resistant (IP67) when the cap is on so even when there is condensation, or a small spillage in the fridge or freezer the data logger fine. Lec Medical LCD advanced temperature data logger has a replaceable lithium battery which is easily replaceable when the battery runs out. The data logger is Supplied with software CD, compatible with Windows 2000, XP, Vista and 7.