Welcome to the store! Features: Can be part of Ohm's law circuit. Used as an auxiliary resistor to expand the voltage range. Used to measure unknown resistance. Used as electromotive force and internal resistance to measure power supply. Used as a known resistance in the circuit to regulate the required current. Used for teaching physical electricity experiments. Specification: Resistance 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: Analog and Digital Accuracy Class: as details Operating Temperature: as details Type: Electrical Test Voltage: as details High quality Material: plastic Package includes: 1 * Simple Resistance Box Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!