Overview Product Description Tenma Dual Meter Power Supply 0-40A AND 0-20V Great for powering some tracks. Product Videos Custom Field Product Reviews Write a Review Write a Review × Tenma USED Dual Meter Power Supply 72-6180A Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *