Since 1978
Valid From : 09 - Aug - 2021
Valid Until : 31 - Oct - 2021
Price: $ 496
To demonstrate the properties of waves. Light, electromagnetic waves, sound, reflection, refraction, interference and diffraction, come to vivid life. Now you get it with a special offer of 1 pair of tuning Forks from Frederiksen in Denmark and one Sound level meter from Extech in USA For FREE: You pay only $560.00 instead of paying $788 !!!