6" Widescreen Touch Panel with Knob, RS232/RS485 & PoE New

Android 11 Programmable AV Controller with 1440×720 Display, Dual Serial & Optional Wi-Fi/Bluetooth — 86 Box

MPN: CR-TOUCH6R

8-Button Programmable Wall Keypad with RS232, IR, Relay & PoE New

Linux-Based AV Control Panel with 4× RS232, RS485 & Magnetic Panel — US 1-Gang, No Processor Required

MPN: CR-KEY8U