The WPI EVOM² Epithelial Voltohmmeter is designed for measuring transepithelial electrical resistance (TEER) in cell monolayers, providing a non-invasive assessment of barrier integrity. It is widely used in gut, lung, and blood-brain barrier research, ensuring confluency and tight junction formation in epithelial and endothelial models., Compatible with Transwell inserts and multi-well plates, the EVOM² allows for reproducible TEER measurements without damaging cell cultures, making it ideal for drug permeability, toxicity testing, and disease modeling. With a clear digital readout and user-friendly interface, it provides high sensitivity and accuracy for reliable data collection in cell biology, pharmacology, and toxicology research.