Shop name: Chong Qing Shuo Yue Ke Ji You Xian Gong Si Features: Can be part of the circuit for Ohm's law. Used as an additional resistor to expand the voltage range. Used to measure unknown resistance. Used as electromotive force and internal resistance for measuring power supply. Used as a known resistor in the circuit to regulate the required current. Suitable for physical electricity experiment teaching. Specification: Attenuation Range / Mini 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 detailed Operating Temperature: As detailed Testing Voltage: As detailed Material: Plastic Package includes: 1 x Simple Resistance Box Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.