2DI Digital Inputs: Two isolated digital input channels for switches, sensors, limit contacts and status signals. 2AI Analog Inputs: Two analog input channels for voltage/current sensors, temperature transmitters and process signals. 2DO Digital Outputs: Two digital output channels for relay driving, indicator control and simple actuator control. Color: As Shown Material: Metal Shield+PCB Board Specification: ECM50-A07 Package Contents: 1x ESP32-S3R8 Industrial Control Computer 1x Data Cable 1x LoRa Antenna 1x WiFi / Bluetooth Antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.