TREK Model 541A is a kind of ESVM, it can measure the surface voltage continuously.Also, you can set up the limited voltage,It will alarm when the surface voltage is over the limited voltage.And you can see the wave form if it is connected with the computer. It can set up the voltage detection system using wireless network。
Model 541A-1
Range:±1KV
Measurement distance：2.5mm±1mm
Accuracy：1% of full scale
Resolution：1V
Model：541A-2
Range：±100V
Measurement distance：2.5mm±1mm
Accuracy：1% of full scale
Resolution：0.1V
