ETS-Lindgren's HI-3604 ELF Survey Meter is a magnetic field probe designed to evaluate both electric and magnetic fields associated with 50/60 Hz power lines, line-powered equipment and appliances. The HI-3604 ELF (extremely low frequency) Survey Meter provides the engineer, industrial hygienist and health and safety professional with a sophisticated piece of surveying equipment for accurate investigation of power frequency environments.

The custom LCD display indicates electric fields in volts/meter and magnetic fields in gauss, tesla, or amperes/meter units. A bar-graph analog indicator aids in quickly locating maximum field orientations and “hot spots”. Full auto-ranging and a sealed membrane switch control panel make the HI-3604 ELF Survey meter ideal for field surveys. The on-board data logging feature allows up to 112 readings to be saved in internal memory storage.

Key Product Information


Specifications Select a tab below for more information



Frequency Response (Nominal): 30 to 2000 Hz 
Sensitivity, Electric Field: 1 V/m to 200 kV/m 
Sensitivity, Magnetic Field: 0.2 mG to 20 G
Dimensions: 35.89 cm long x 20.65 cm wide max (14.13 in x 8.13 in)
  • HI-3604 ELF Survey Meter
  • Custom Carrying Case
  • Two Nine-Volt Alkaline Batteries
  • Calibration Certificate
  • Users Manual
  • ​HI-3616 Remote Control Readout
  • HI-4413 Fiber Optic Modem

Key Features


  • ​30 to 2000 Hz
  • Custom LCD Display
  • Ideal for Field Surveys

Literature and Videos


Date Last Updated: Thursday, December 20, 2018
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