Specification :

PD- 20 PD- 20S and PD- 28 are high voltage probes. They measure
both AC and DC voltages with your multimeter. They consist
of 2 kinds of contact tips, a test clip for the ground , a set of
test leads for multimeter and a high qualify enclosure.
The enclosure has very good insulation properties.
They are light- weight and rugged.
2 kinds of contact tips are available.
One is a round needle tip for normal use.
Another is a special flat spring type for CRT anode.
Before taking any measurements, first connect the alligator
clip of this probe to earth ground and make sure connection
is proper.