NEED-M-1KB is a miniature universal relay module created by Relpol. It is used in a variety of applications such as industrial automation, control systems, data logging, safety systems, etc. The module comes in a plastic-encapsulated housing, which protects the components from external influences. It is also resistant to vibration and shock, making it highly reliable and robust. The module contains a relay, diode, and base block, which are easily replaceable. It also features a selectable voltage range of 5 to 30 VDC, as well as a switching voltage and current rating of AC 230V, 10A. It is a compact and reliable component, making it perfect for a wide range of applications.