Features: Can be part of the circuit for Ohm's law applications. Used as an additional resistor to extend voltage range. Used to measure unknown resistance. Used for measuring electromotive force and internal resistance of power supplies. Used as a known resistor in circuits to regulate required current. Suitable for physics electricity experiment teaching. Specification: Attenuation Range / Minimum Step: 0 to 9999 ohm, 1 ohm step Shell Material: Plastic Dimensions: 14 x 10 x 5 cm / 5.51 x 3.94 x 1.97 inch 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: Electrical Material: Plastic Package Includes: 1 x Simple Resistance Box Note: Light and display differences may cause slight color variation between the image and actual item. Measurement error allowance is +/- 1-3 cm.