Servonaut SM3 electronic engine sound generator for truck models – successor to the well-established SMT

Sounds include ignition, horn, compressed-air brake, turbo charger

5 different motors to choose from

Reversing beeper (depends on speed controller)

No extra battery needed, can directly be powered from the main battery

Supply voltage 7.2 to 12V, loudspeaker from 8 Ohm up

Max. output 3W with 8 Ohm at 7.2V

With small volume control (potentiometer)

New Servonaut accessory available: equalizer SM-EQ for adjusting sound

Dimensions: 55 mm x 28 mm x 13 mm
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Item No. Description Price QTY

Standard Sound

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Standard Sound


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