This rugged, sensitive electroscope can accept various accessories to change its capacitance. A sensitive aluminium vane is balanced in a vertical position on a metal support which is insulated from its base. The vane is easily observed and projected on a chalkboard (Light Source, not included) on which an arbitrary scale has been marked. Height without attachments is about 9". Four attachment, each equipped with a banana plug which fits the vane system top, are included : a 1" conducting sphere; a 3" conducting sphere; a proof plane with detachable insulating handle; and an aluminium cup (Faraday ice pail). Attachments can be charged using either our Electrophorus or our Power Supply (not included). With instructions.

Price:
Automation Grade : Manual
Equipment Materials : Borosilicate glass tube, metallic frame, rubber tubing, mercury column, plastic or metal scale
Accuracy : 1 ml (volume), 2 mm (pressure scale)
Dimension (L*W*H) : Approx. 38 cm 16 cm 8 cm
Weight : 0.81.2 kg depending on model
Capacity : Up to 30 ml (graduated tube)
Automation Grade : Manual
Equipment Materials : Stainless steel tube, brass, aluminium
Accuracy : 0.01 mm (using dial gauge)
Dimension (L*W*H) : 600 mm x 120 mm x 180 mm
Weight : Approx. 3 kg
Capacity : Up to 500 mm test rod length
Automation Grade : Manual
Equipment Materials : Brass contacts, lacquered wooden base, resistance wire, cast iron supports, scale engraved on brass strip
Accuracy : < 0.02 V (direct reading up to 2V, higher with resistance box)
Dimension (L*W*H) : Approx. 420 mm 120 mm 150 mm
Weight : Approx. 2.53.5 kg
Capacity : 1030 V (measuring potential difference up to 2V directly; higher voltage with resistance box)
Automation Grade : Manual
Equipment Materials : Cast Iron, Stainless Steel
Accuracy : 0.01 g
Dimension (L*W*H) : 345 x 110 x 150 mm
Weight : 3.5 kg
Capacity : 200 g