Search results for: 'kits sound to light kit'
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Enviro Battery Kit for Apples, Tomatos and Lemons, with 4 Copper Rods, 4 Zinc Rods, Accessories, and WiringItem# 241 / 2421) Learn the science behind the power, The Enviro-battery uses natural materials like mud, lemons... Learn More$12.88 -
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LIGHT ALARMItem# 80-080Detects very small amounts of light and sounds the piezo alarm. Put it in your cash box or cupboa... Learn More$19.95 -
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Enviro Lemon Battery Kit with 4 Copper Rods, 4 Zinc Rods, Accessories, and WiringItem# 241 / 2421) Learn the science behind the power, The Enviro-battery uses natural materials like mud, lemons... Learn More$12.88
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