Good, working condition >Friendly software is convenient for users' operation > Built-in thermal printer can print results automatically > Users can set abnormal valve flag by themselves > 4 wavelength cold light source ensure the result accuracy > Throughput is 60 samples/hour or 120 samples/hour > 14 test items are optional > Large capacity of data memory is convenient for review Return Policy Items are sold as-is with no returns or refunds available unless explicitly stated.