SQ-72 45-65HZ 45-55Hz Frequency Analog Panel Meter AC 110V 220V 380V Square 72 * 72mm 1Pcs(45-65Hz,380V)

Voltage Testers Product Name: AC Frequency Meter Product Model: SQ-72-Hz Dimensions: 72*72mm Hole Size: 67*67mm Accuracy Level: 2.5 Damping Response Time: less than 4 seconds Withatand Voltage: AC 50Hz, 2000V for 1 minute >>Package Included 1 × AC Frequency Meter Dimensions : 72*72mm Accuracy Class : 2.5 Measuring Range : 45-65Hz, 45-55Hz Model Number : SQ72-Hz Display Type : Analog Only DIY Supplies : ELECTRICAL Origin : Mainland China