Features: Elevates your home automation with the high performances 8 channel RS485 Relays, designs for simple integration and reliable control of your electrical systems. This Relays boasts a robusts construct with optical isolation inputs, multiple operating including momentary, latching, interlocks, and time delay, ensuring Multifunction functionality tailored to your needs. Suitable for enthusiasts, electricians, and system integrators look for a dependable solution to manage power distribution in homes or industrial setting. Excellent for use in home automation projects, security systems, lighting control, and anywhere precise electrical control is required, this Relays provide the flexibility and safety you demand. With its easy to use MODBUS and AT commands, customizable Inputs output relationships, and support for multiple device connections, this RS485 Relays is a top choice for sophisticated and efficient electrical management. Specifications: Component: plastic Size: about 42x88x140mm Voltages: 12v/24v(optional) Note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item. Package includes: 1xRS485 Relays Controllers