Warranty: 1 year OLYMPUS MB-155 leakage tester for all flexible Olympus endoscopes, to connect to MU-1 or cold light source, second-hand. Write us or call us any time, if you have further questions. OLYMPUS MB-155 Dichtigkeitstester für alle flexiblen Olympus Endoskope, zum Anschluß an MU-1 oder Kaltlichtquelle, gebraucht article 1002007 Return Policy: Items are sold as-is with no returns or refunds available unless explicitly stated.