Black Box AlertWerks Voltage Sensor - DCThe EME1D1 005 R2 is an isolated digital DC voltmeter designed to monitor and log voltage from batteries, power supplies, and other DC powered equipment. This compact device delivers accurate, isolated voltage readings while offering the flexibility to integrate third party sensors that provide DC voltage output. Ideal for battery banks, solar arrays, and industrial systems, it helps you build reliable data collection networks that keep critical power