Halo Hook-On Ammeter for overhead lines.

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The Halo has been designed for measuring current flow on overhead line systems up to 33 KV. The sensing unit, encased in a moulded plastic housing, feeds a circuit utilising solid state devices in a fibre glass tube.
Using operator rods the Halo is hooked over the conductor, after 5 seconds the reading is stored and the instrument can be returned to ground level for the result to be recorded.

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Automatic latch-in at highest monitored current over any given time.
Simple to use membrane switches
Sensor unit gap sufficient to accommodate up to 50mm conductors
3 digit LCD digital display giving readout and condition of battery
Internally screened against effect of electrostatic fields
Supplied complete with carrying case
RMS measurement
Technical Specification
Measuring range 0 2000 Amps
Accuracy 5% +/- 3 digits
System Voltage Up to 33 KV
Display 3 digit digital display
Operating temperature -10C -+ 55C
Frequency 50Hz or 60Hz
Battery 9v PP3 6R61