The Trek Model 320C Electrostatic voltmeter is a versatile instrument which is used for a variety of electrostatic applications including contact potential measurements, materials evaluation, and electret studies.The model 320C makes highly accruate, noncontacting measurement of electrostatic poetentials of 1mv-100v over a wide range of probe-to-surface distances. The Model 320C is specifically designed for high sensitivity applications.
Measurement Range:0~±100V
Sensitivity：1mv
Measurement Accuracy:better than 0.05% of full scale
speed of response: less than 300ms for a 100V step
