TAG330 - Electronic HV No Voltage Tester from 50 to 765kV

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Device designed to test for the absence of voltage on HV systems up to 765 kV. Its use is particularly recommended for voltages over 400 kV.
Technical:
Mains frequency range: 16.66; 50 or 60 Hz, please specify when ordering.
Indication of the absence of voltage and the correct operation of the device 
by a green LED.
Very sturdy polycarbonate casing.
Selftest device.
Electronic cutout if battery drops under threshold voltage of 8V.
Can be used in all weathers.
Power Supply: 1x9V alkaline battery.