This software works with the CPAPs and the GoodKnight 425 Bilevel. The software allows access to records of up to 200 sessions of date/time usage data for the 425. For the 420E, it provides detailed recording and analysis of the last 96 hours of operation. It displays persistent residual apnea, hypopnea and snoring events that occur at set-pressure, allowing appropriate adjustments to therapy. It includes a 6-foot download cable as well as one user manual each for the GoodKnight 420S and the 420E CPAPs, and one for the GoodKnight 425 Bilevel.