You can use any other generic serial USB terminal to configure YDOC devices with an Android device supporting OTG (USB host), but ydocTerminal has some convenient YDOC aware features. - Auto terminal screen refresh when displaying a new YDOC device menu - Menu navigation by clicking YDOC menu items [x]. - Select multiple choice options by clicking (x = , y = ) - Select confirmation questions by clicking (yes/no) - In screen prompt for editing names & numbers. - Wireless data logger configuratio