Sensatec Alarms One-button design with no confusing switches. Just plug in a sensor pad and alarm automatically begins monitoring once weight is applied to the sensor pad (sold separately). Automatically resets once an alarm is triggered and weight is applied. Silicon boot helps protect against damage. Smooth, clean surfaces allow for effective infection control. Deluxe model also includes a socket for a Nurse Call Jack Adapter and a socket for an A/C Adapter (both sold separately). Batteries and mounting strap included. Optional silicon rubber boot sold separately.