Production Description: In an effort to keep control of the raging Hulk inside him, Bruce Banner used a heart rate monitor to stay aware of his body and prevent his metamorphosis into the jade giant. Production noted this as one of the monitors used by actor Edward Norton that was given to him by Betty Ross (Liv Tyler).

Technical Description: POLAR brand heart monitor watch. Made from a charcoal and grey rubber band with metal clasp item features a square face and measures 10" long. Item is untested and unknown if in working condition.