RS4451 Mini DC Generator with Digital Voltmeter for Steam or Internal Combustion Model Engine

Model RS4551 Generator Module, Color Green Compact brass generator and motor module designed for model engines and educational demonstrations. Finished with electrophoretic painting for a durable, realistic appearance. Includes an integrated digital voltmeter for real time voltage readout. Key features and benefits Dual functionality: works as a generator when driven by a steam or combustion engine and produces a usable output of 12V at 1A, or operates as a DC motor when 12V is applied to the terminals. This makes the unit useful for both demonstration and practical model integration. Built in digital voltmeter: the on board display shows output voltage clearly, helping users learn about generation and load behavior without extra equipment. Precision mechanical interface: 3.2 mm spindle diameter fits common small engine couplings and model drive shafts for straightforward installation. Robust materials and finish: brass construction provides weight and durability, while electrophoretic painting gives a realistic look suitable for display or hands on use. Compact and portable: product dimensions 8.1 x 4.1 x 5.1 cm and product weight 258 g make the module easy to mount or carry for demonstrations. Performance and specifications Material: Brass with electrophoretic paint finish Color: Green Model: RS4551 Spindle diameter: 3.2 mm Generation voltage: under 30V; typical generator output 12V at 1A when driven Speed range: 1000 to 5000 rpm Suitable age: 15 and up Product dimensions: 8.1 x 4.1 x 5.1 cm Product weight: 258 g Package dimensions: 13 x 11 x 8.5 cm Package weight: 350 g Packing: Graphic carton Package contents: Engine model x 1 Practical applications Model engine upgrades: mount to steam engines or small internal combustion model engines to provide realistic electrical output and load testing. Educational demonstrations: use in physics or engineering classes to demonstrate electromagnetic generation, motor operation, and the relationship between speed, load, and voltage. The built in voltmeter simplifies measurements during experiments. Hobby and display use: integrate into model workshops or dioramas where a functioning generator or motor adds interactive detail. Why choose this module Combines functional generation, motor operation, and a built in voltmeter in a compact brass package for hands on learning and reliable model integration. Dimensions and spindle size suit common model couplings, reducing the need for custom adaptors. Clear specifications and straightforward installation make it suitable for hobbyists, students, and model builders who need a small, functional generator or motor module.