Overview Reviews Product Description Stores up to 20 tests with 1-4 repetitions per side. "axis compensation" circuitry assures accuracy for off-center pad placement. Records peak force and calculates coefficient of variation (cv) and bilateral strength deficits. 150 lb capacity. Product Videos Custom Field Product Reviews Write a Review Write a Review × JTECH Medical JTECH Medical Commander Echo - Manual Muscle Testing Dynamometer Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *