I am developing a refrigeration monitoring system called Frost Sentinel and I am interested in your ES32D26 controller. For my prototype, I need the following configuration: ES32D26 controller Compatible ESP32 38-pin module included 24 V DC power supply version Industrial/DIN-rail enclosure if available Wi-Fi communication RS485 / Modbus 4 × 4–20 mA analog inputs 4 × 0–10 V analog inputs 8 × digital inputs 8 × relay outputs The system will monitor refrigeration rooms, including: Temperature sensors High and low pressure sensors Cold-room door contacts Compressor operating status Defrost operating status Other refrigeration equipment alarms I already have a 4G router with a SIM card, which provides Wi-Fi Internet access, so I do not need 4G built into the controller.
