LINE FREQUENCY MONITOR
Model : LF-423
* 0.5 to 500 Hz (x 0.01 Hz, 100 Hz)
* Input voltage : 5 to 250 ACV.
* Check frequency to DC to AC converter, mobile portable generator, power line.
台湾路昌LUTRON_路昌LUTRON LF-423计频器显示器
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