High Voltage A range of kits that are High Voltage in nature 400mm Van De Graaff (VDG) Generator kit – 180KV £90.00 Read more Cockcroft Walton Multiplier (Electronic Van De Graaff) Kit £34.80 Add to basket LCD Humidity Meter Thermometer Sensor £4.80 Add to basket Van De Graaff (VDG) Generator kit – 150mm – 40,000V of sparky fun. £26.40 Add to basket Tweet