Description: brand new and high quality Feature: Micro-channel remote control 2-way remote cloud Ethernet net-work switch delay relay TCP/UDP relay module controller can be expanded to 8. STC microcontroller for industrial master chip. Onboard 2-way high-quality relay, relay with absorption diode circuit. With 1-channel power indicator, each relay has status indicator lights up and relay. The relay module can be extended up to 8 outputs, The relay module should be active high. You can configure the module through the net-work parameters, such as the module IP address, default for gateway, etc. Holding relay status before power down (configurable). Through internet control, remote cloud by local password for protection, safe and reliable. Module supports TCP, UDP, cloud remote control three kinds of operation. Module is equipped with VB, for Delphi PC program and source code to help you easily computerized remote control. Specifications: Item Type: 2 Way Relay Controller Module Material: metal+plastic Size: 70x50mm/2.7x1.9in Color: As shown Quantity: 1 PC Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x 2 Way Relay Controller Module (other accessories demo in the picture are not included!)