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Detects electromagnetic and AC electrical voltage sources from 110 volts to 750,000 volts at a range of 200mm to 300mm.
View Modiewark Contact and Non-Contact Voltage Tester
The new G.L McGavin Digital hand held Proximity Tester FR30 is designed for Electricians, Technicians and the Fire & Rescue departments.
View FR30 Rescue Tester
Non-contact voltage detector for use by persons approaching metal clad meter boxes in residential or commercial situations.
View Mini Meter Reader Voltage Tester
Pocket-sized non-contact power pole tester to aide in the identification of cracked and broken insulators.
View Mini SWER & Pole Voltage Tester
When using the unit on power lines where lower voltages e.g. 415 volts lines are below higher voltage power lines, an affect will occur where a null or dead zone may appear.
Solution: To overcome this move out from under the line parallel or adjacent until a signal is heard and repeat procedures 1 to 16.
Electric fields from power lines can be disturbed and redirected by objects that are grounded. A tree near a power line will lower the strength of an electric field which causes you to change the setting on your tester. Other influences such as weather, water (humidity) will change the electric field strength.
Pole mounted transformers cause null effects when stepping down voltage shown here 11kV to 415 volts the surface area is greater therefore a stronger signal is generated.
Solution: By moving around the pole at a distance of 10 metres a clear and free signal can be gained.
The Modiewark tester is not designed to operate where mains cable are armoured, enclosed in metal conduit, underground or any situation where the AC field is negated by metal shielding.
The unit will not detect DC voltages and must be used by trained personnel around train tracks and railway control boxes and signals.