Scott Essential Towel Dispenser System provides reliable balance of efficiency, performance and value. The electronic paper towel dispenser offers up to five-year battery life with more than 120,000 dispenses on one set of batteries, equal to 60,000 hand dries. It is 99.9 percent jam-free so you will never miss a hand-drying occasion, minimizing risk of cross-contamination. Durable, shatterproof and transparent cover lets you check supply levels without opening the dispenser. Dispenser uses Scott Essential Hard Roll Paper Towels (1-3/4″ core). It is ADA-compliant when properly installed and when using the recommended paper towels. Designed to save you time and money while reducing service disruptions and user complaints, this dispenser takes the worry out of paper towel dispensing so you can focus on more important things. Design also includes keyless entry or key-activated spring lock, emergency feed knob and stub roll feature (with no double feed) to minimize waste.