TAG5000S 4 to 36kV - Wireless Phase Comparator 

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Wireless phase comparator for three phase network with nominal voltages from 4 kV up to 36 kV – 50Hz or 60Hz (to be specified). Must be used with two insulating sticks included in the set.
Advantages:
Light and compact unit for overhead lines
Safety probes for indoor use
Positive indication for ‘’in phase’’ conditions
No hazard due to a cable link
Increase distance of operation (more than 25m)
Possibility of phasing through walls (inside outside)