SMART CAREGIVER SC1-SYS  Safety Auto-Reset Monitor And 10-Inch by 15-Inch Chair Sensor Pad Cord Protection - Safe Release cord reducing trip and entanglement hazards and strain relief on monitor reduces cord damage Simple to Use and Easy to Set up Chair Sensor Pad has a 1 year pad life and TL-2100S monitor has 1 year warranty Requires 1 - 9v battery (not included)