Not directly electronic, but...
A 3/8in drive digital torque-angle wrench with a range of 5-100 ft-lbs. Does tracking, peak hold, 10 memories, presets for torque and/or angles, converts to all metric and imperial units, etc. We're doing a bunch of development using various kinds of motors to drive various kinds of loads and in some cases (particularly hydraulics), knowing the load's torque is extremely important. Everyone's existing torque wrenches went up to 250+ ft-lbs because they bought them for working on vehicles, but we're dealing with much smaller values and most torque wrenches aren't accurate in the bottom 20% of their range.
I personally already owned a very small, torsion bar style 1/4in drive torque wrench that reads in in-lbs but its range was too low. Also, difficult to read accurate values from their scale-and-needle "displays".
I've never before seen a torque wrench that also measures angles of rotation. Apparently some fasteners are tightened that way. You set them to a certain position or a certain torque, and then rotate them a prescribed number of degrees past that point. Very interesting.