- 74 - © 2018 unitech Electronics Co., Ltd. All rights reserved.unitech is a registered trademark of unitech Electronics Co., Ltd.MS652 User’s Manual3.9.4 Transmit MSI Check Digit(s)Scan one of the following bar codes to transmit MSI data with or without thecheck digit.3.9.5 MSI Check Digit AlgorithmTwo algorithms are available for verifying the second MSI check digit. Scanone of the following bar codes to select the algorithm used to encode thecheck digit.Transmit MSI Check Digit(s) (Enable)Do Not Transmit MSI Check Digit(s) (Disable)*MOD 11/MOD 10MOD 10/MOD 10*