{"product_id":"doppler-effect-demonstration-apparatus-92db-buzzer-0-8m-tether","title":"Doppler Effect Demonstration Apparatus, 92dB buzzer, 0.8m tether","description":"\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e EISCO\u003c\/p\u003e\u003cp\u003eThe perfect demonstration of the Doppler effect in a classroom (with caution of course). Swing the Doppler effect apparatus and students will be able to hear the change in frequency. Battery not included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe buzzer is 92 dB while standing still, when spun a student can easily hear the shift in frequency\u003c\/li\u003e\n\u003cli\u003eBuzzer housing has a simple on\/off switch and is constructed of rugged ABS plastic\u003c\/li\u003e\n\u003cli\u003eNylon cord is 2'8\" attached to a rugged ABS handle 8.5in long, 1in diameter)\u003c\/li\u003e\n\u003cli\u003eBattery not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e DEF2013\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EISCO","offers":[{"title":"Default Title","offer_id":44377467748417,"sku":"MCAB00YNT5J5K","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/6321\/7729\/files\/71EoNhDtlsL.jpg?v=1786466470","url":"https:\/\/toycartusa.com\/products\/doppler-effect-demonstration-apparatus-92db-buzzer-0-8m-tether","provider":"ToyCartUSA","version":"1.0","type":"link"}