Han D Mag brand made in the USA. Nagravox are an agent for these fine essential pieces of test gear that have been the golden standard for the last 40 or more years. 

Suitable for all reel to reel tape recorders and factory recommended specifically for Revox,  Studer and Nagra. 

This demagnetiser kit contains:

• 1 x  Han D Mag type 220S  (220 / 240 VAC 50hz)  demagnetiser with dual pole piece "tips" (the opposite end can be used to demagnetise tools and erase tape). 1240 gauss field strength in contact and 370 gauss @ ~ 6mm.

• 1 x robust in line cord switch with neon indicator which you can fit anywhere in the cord. We suggest about 8"/ 200mm from the unit. 

• 1x mains plug  either AUS  UK  or EU  or suitable adapter

PLEASE NOTE:  

• the 220V model can be used on 110 V as well - the field strength will be reduced but it will still do the job!  If you want a universal dual voltage model - this is the one to get.
• Mains plug or adapter suitable for  AUS  NZ  UK  EU  + in line switch provided for DIY fitting.