This unit is working condition, very good as new we can check and test it on demand The Viva-E System provides a complete menu of gold standard EMIT assays for fast analysis of drugs of abuse, therapeutic drugs and immunosuppressants, as well as sample validity testing on a single bench top analyzer. This easy-to-use system is designed to meet all drug testing needs. Return Policy Items are sold as-is with no returns or refunds available unless explicitly stated.