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earthquake alarm
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Science Kits for Teens - Earthquake Alarm

When the earthquake alarm model is shaken, the copper wire of the glass bead will touch the O-shaped lamp, the line will be connected, and the buzzer will make a beep sound.

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10
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2.22
>=1000 Pieces (Shipping not included)
1.72
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earthquake alarm Science Kits for Teens

Description
Description

Size: about 60*130mm

Weight: about 40g

Color: as shown

Material: environmentally friendly wood

(batteries need to be prepared by yourself)

Packing: Ziplock bag

Package included: as shown

Installation steps: Please refer to the instructions in the package.

Scientific principle: When the earthquake alarm model is shaken, the copper wire of the glass bead will touch the O-shaped lamp, the line will be connected, and the buzzer will make a beep sound.

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