San Jamar ® iQ Sensor technology offers consistent paper dispensing, fewer misfires & length delay adjustment. System features replaceable drive module & downloadable usage to PDA. Holds up to 8" roll. Automatic transfer reduces stub roll waste. Touchless design reduces risk of cross-contamination. Extended battery life (requires 4 D alkaline batteries, not included). Self-adjusting sensing field. Does not allow free pulling of paper. Dual mode functionality: set to iQ Sensor or paper hanging out. Towels Dispensers Type: Roll Towel Dispenser; Capacity (text): One Roll; Material(s): Plastic; Color(s): White / Clear.