Elpro Libero Ti1 ELPRO-BUCHS AG Temperature Data Logger No validation date appear (It seems like it expired on 2020) but as far as i know even when the validation time has expired, you can still reprogram it and you'll need to add a new battery. Sold without any driver or software. No other tests were made. Please look at the detailed photo labels for more information. Highly preserved! Sold as seen in the photos. Weight 35g. As-is.