w5500 micro-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 gateway, etc Holding relay status before power down (configurable) Through internet control, remote cloud by local password protection, safe and reliable 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.