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Avoid disasters when drilling holes in walls
Plastic snap-grid
Add an LCD display to any low-tech application and make it look high-tech
Over current protection sensing
User Guide
Velleman K4401 Sound Generator Kit Sealed Lead Acid Batteries & Chargers Avoid disasters when drilling holesGeneral Information Manufacturer Velleman Part Number K4401 Product Type Electronic DIY Kit Miscellaneous Skill Level Rookie Required Skills Soldering Batteries 1 9V Battery Required or 8 10V DC 100mA Power Supply. None Included Features Machine gun (random number of shots with bullet impact) European siren Phaser gun (STAR WARS like machine gun) Racing car engine (increase decrease the number of r. p. m.) Car tire screech Explosion Mortar shot
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