About QSI

QSI Corporation is a manufacturer of rugged handheld, panel-mount and pedestal-mount terminals for industrial OEMs and commercial vehicle system integrators.

Operator Interface Terminals

Our rugged operator interface terminals and human machine interface (HMI) products include inexpensive character terminals, Ethernet-enabled color touch screen operator interfaces, rugged handheld and economical graphic terminals. Our operator interface products are programmable, customizable, CE certified, and NEMA 4/12/13 rated. Numerous interfaces are available, including serial (EIA-232, EIA-422, EIA-485), Ethernet and Power-Over-Ethernet.

Vehicle Terminals

Our mobile data terminals (MDT) for vehicle applications are capable of communicating via serial, Ethernet and attaching to various vehicle networks like J1708 and J1939. Our in-vehicle computer products range from simple PCs controlling signage and displaying vital information about the vehicle to complete fleet management systems with GPS and AVL. QSI has a vehicle mobile data terminal solution to fit your needs.

Custom Terminals

QSI excels in making custom industrial and vehicle human machine interface terminals that withstand high levels of shock, vibration, humidity and other environmental conditions. QSI’s Qlarity™ programming language, and our hardware configuration capabilities, allow you to customize an operator interface terminal to meet your needs. Where appropriate, we can design an all-custom, ruggedized operator interface to meet your exact requirements.