With silicone backlight buttons enjoying long service life, touble-free operation in darkness. Ultra-clear display for superb performance even in the sun. With the window menu settings, you can quickly adapt the machine to your work needs and quickly output the signals you need. Real-time Curve: The input/output changing can be displayed as curves. LCD screen with backlight, display input and output signal in one interface simultaneously. Size: Approx.9*7*3.2cm / 3.54*2.76*1.26in? Hard shell and small size, easy to carry. Save cost and save energy. Widely used in industrial PLC, regulating valves, process instrumentation debugging.