Voltage Detector can detect 44 kV from up to 30 ft away.
Press Release Summary:

Original Press Release:
AEMC® Introduces Personal Voltage Safety Detector
The Personal Voltage Detector Model 44SVD is designed to detect high voltage from 2.5kV and up without physical contact. It detects 44kV from up to 30 ft away.
As the Model 44SVD is moved closer to the voltage-carrying conductor its AC sensor plate picks up the radiated electric field. The electric field is amplified and processed by the internal circuitry. Once the processed signal is above the threshold, it triggers the input of an integrated circuit, which turns on both the buzzer and LED.
The rugged pocket sized case has a built-in clip to attached to outer clothing or a belt.
Price: $295.00
Submitted by:
Laura C. Mahoney, Marketing Communications Manager
AEMC® Instruments
200 Foxborough Blvd.
Foxborough, MA 02035-2872
(508) 698-2115
(508) 698-2118 (fax)
Imahoney@aemc.com
Technical Contact:
Howard Myers, Application Engineer
techsupport@aemc.com