The BENDER VME420-D-2 is a multifunctional monitoring relay designed for AC/DC systems, capable of detecting under/over voltages and frequency within the 0-300V range. It features LED indicators for ON/Alarm 1 and 2 status, push-wire terminals for easy installation, and operates with a supply voltage of 70-300VDC or 40-300VAC at 15-460Hz. Model number: B93010002.