A9C21142 is part of Schneider's Alterion LX Series human machine interface (HMI) product family. It is a 4.3-inch touchscreen display designed for use in industrial control and automation panels, providing a graphical representation of machine and system functions. The display offers up to 1024 x 600 resolution and is capable of displaying up to 16 million colors, ensuring a high-quality visual experience. It has a robust aluminum housing, with a scratch-resistant glass surface, and a wide operating temperature range of -20°C to +60°C. The A9C21142 supports a variety of operating systems and programming options, including Cascade, Advanced Debug, Visual Designer, and NEC. 10 bit analog port, USB, and RS-232/422/485 ports are available for connecting to external devices. It also features a wide array of LED indicators that can be programmed to indicate system status or alarm conditions.