You can see the product being dispensed, no wasted extra discharges. Made from durable plastic with a secured locking option. Sensor lights up green when dispensing, red when batteries are low. Falls asleep when not in use and wakes up quickly. Larger refill indicator window with easy-to-slide product identification Window Cards. Economical, dispenses only .75 mL per activation (hand wash). Uses existing 1000 mL Health Guard® 4-pack refills. Combine the dispenser with a Health Guard® Hand Sanitizer and floor stand to create a no touch hand hygiene station!