Monroe Electronics SE0032 소형 1 점 프로브 (모델 272A 용)

Specifiations:
Designed to work with Model 272A
Overall length
including cable is approximately 3 feet (90 cm).
Probe length: 4.5 inches (115 mm).
Guarded ring configuration has outer ring with an inside diameter of 0.44” (11.2 mm) and a spring-loaded inner electrode with an outside diameter of 0.1” (2.54 mm). 

Datasheet