w5500 -controller for industrial master chip Onboard 4-way high-quality relay, relay with absorption diode circuit The relay module can be extended up to 8 outputs You can configure the module through parameters, such as the module IP address, default , etc Holding relay status power down (configurable) Through internet control, remote cloud by local password protection, safe and Input voltage power range: 12V ~ 24V Control level input: 5V Relay withstand voltage: 10A / 250VAC 10A / 30VDC colour:blue Material:Metal + pc Package Contents: 1* Networking Controller Only the above package content, other products are not included. Note: Light 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.