10 uH to 111.1 mH (10 uH per step) - wide range and high resolution Four decades of inductance Sturdy, multi-way binding posts Slide switches to easily add or subtract for desired value Durable ABS plastic housing Compact size 5.79" x 4.61" x 2.16" Perfect for educational use, R & D, service, production line testing, and maintenance Model LBOX-405 Inductance Decade Box Affordable decade box with rugged quality and high precision. Perfect for educational use, R and D, service, production line testing and maintenance. Specifications:Range: 10 uH to 111.1 mH (10 uH per step)Accuracy: 5% inductors used throughout@ 23 ± 5℃@ 1 KHz test frequency Max. Rating Current: 10 mA DC or ACInternal Residual Inductance: Approx. 0.5 uHOperating Temperature: 32 to 122℉ (0 to 50℃)Operating Humidity: Less than 80% RHWeight: 0.74 lb. (333 g)Dimensions: 5.79" x 4.61" x 2.16" (14.7 cm x 11.7 cm x 5.5 cm)