€104,06
incl. BTW, per stuk
€86,00 excl. BTW
Electric Doorbell
Bell for demonstrating electro-magnetic operation of apparatus and verifying that sound waves do not propagate in a fine vacuum (< 1 hPa).
Open acrylic housing with 4-mm safety sockets.
Power supply: 6 V AC
Dimensions: 100x95x50 mm³
