ETS-Lindgren's Model HI-4433-GRE Electric Field Probe measures electric field strength and provides X, Y and Z as well as total field values. Data from each axis can be viewed individually or summed. The field probe is fiber optically coupled to the readout or PC interface, eliminating the possibility of cable interference. For additional frequencies and data ranges, ETS-Lindgren's HI-4433 Series of Broadband Radio Frequency (RF) Isotropic Field Probes are battery-operated and designed for use in making RF exposure measurements.
Electrical Specifications
Frequency Response: 500 kHz to 5 GHz, +2.0/-3.0 dB 
Dynamic Range: 3 to 300 V/m 
Battery: 20 Hours Continuous Operations, 3.6 Vdc, 1400 mA-Hour Rechargeable NiCAD 
Isotropic Deviation: +/- 0.5 dB   
Data Sample Rate: 1 to 24 Samples per Second
Detection: Isotropic Electric Field 
Linearity: +/- 0.5 dB Full Scale 
Response Time (Minimum): 86 msec 
Fiber Optic Connectors: Standard FSMA