Features: Can be part of the circuit for Ohm's law applications. Used as an additional resistor to extend voltage measurement range. Used to measure unknown resistance values. Suitable for measuring electromotive force and internal resistance of power supplies. Functions as a known resistor in circuits to regulate required current. Ideal for physical electricity experiment teaching purposes. Specifications: Attenuation Range / Minimum Step: 0 to 9999 ohm, 1 ohm step Shell Material: Plastic Dimensions: 14 x 10 x 5 cm Color: Black Quantity: 1 Piece Display Type: Analog and Digital Accuracy Class: As specified in product details Operating Temperature: As specified in product details Testing Voltage: As specified in product details Electrical category: Resistance measurement Material: Plastic Package Includes: 1 x Simple Resistance Box Note: The package includes only the items listed above; other products are not included. Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance: +/- 1-3 cm. 100%