The OEI-372S-H-W-Z indoor station is a compact, high-performance device designed for modern surveillance and access control systems. It features a 7-inch ultra-thin TFT LCD display with a resolution of 1024×600, delivering clear visuals for monitoring and communication. Powered by a Linux operating system, the device ensures stable and efficient performance, while its dual power support (DC 12V ±25% and IEEE802.3af PoE) offers flexible installation options with low power consumption of less than 10W. For communication, it comes equipped with a built-in omnidirectional microphone and speaker, enhanced by noise suppression, echo cancellation, and automatic gain control (AGC) to provide clear audio quality. The system supports MP3 and G711 audio compression at 128 Kbps, ensuring efficient data transmission without compromising clarity. In terms of connectivity and integration, the device includes multiple interfaces such as network port, Wi-Fi (2.4GHz), RS485, IO inputs/outputs, and a TF card slot, making it adaptable for various smart security setups. It supports TCP/IP, IPv4, HTTP, RTP, RTSP, and NTP protocols, along with UNV’s private protocol, ensuring seamless network communication. The OEI-372S-H-W-Z can handle up to 200 screenshots, 200 zone alarms, and supports a system capacity of up to 20 connected devices, including IPCs, NVRs (up to 2), entrance stations, and doorbells, along with 19 indoor station extensions. Built for indoor use, it operates efficiently in temperatures ranging from -10°C to +55°C and humidity levels of 10% to 90% (non-condensing). With a lightweight design of 360g and compact dimensions of 193 × 143 × 25 mm, this device is easy to install and ideal for residential or commercial applications. Additionally, it is NDAA compliant, ensuring it meets global regulatory standards for security and reliability.