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. Used for measuring electromotive force and internal resistance of power supplies. Used as a known resistor in circuits to regulate required current. Ideal for electricity experiment and educational purposes. 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: Analogue and Digital Accuracy Class: As specified in product details Operating Temperature: As specified in product details Application: Electrical testing Testing Voltage: As specified in product details High quality Material: Plastic Package Includes: 1 x Simple Resistance Box Note: Light and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.