Two Hand Control Modules monitor the output of each mechanical switch button and de-energize when the machine operator removes one or both hands from the buttons. These Control Modules are provided with a diverse-redundant microcontroller circuit and multiple redundant, force-guided [mechanically linked] output contacts. Two Hand Control Modules work with banner STB self-checking touch buttons or can be retrofitted with existing mechanical palm buttons to create a complete, ergonomic two-hand control system. Two Hand Control Modules are manufactured by Indus Control and Automation Pvt Ltd.