Features: Can be verified part of the circuit Ohm's law. Used as an additional resistor to expand the range of volts. Used to measure unknown resistance. Used as electromotive force and internal resistance for measu power supply. Used as a known resistor in the circuit to regulate the required current. Used for physical electricity experiment teaching. Specification: Attenuation Range / Mini Step: 0 to 9999ohm, 1 ohm step Shell material: Plastic Dimensions: 14x10x5cm/5.51x3.94x1.97inch Color: Black Quantity: 1 Pc Display Type: Analogue and Digital Accuracy Class: as details Operating Temperature: as details DIY Supplies: Electrical Testing Voltage: as details 100% brand new and high quality material: plastic Package includes: 1 * Simple Resistance Box