EFM-100 Atmospheric Electric Field Monitor

EFM-100 User Manual (Requires Adobe Reader)

EFM-100 Atmospheric Electric Field Monitor V2.12 Software for Windows
Compatible with all versions of Windows. This is the software that ships with the EFM-100.
If you encounter any errors with missing DLL’s, download and install the 2015 Visual C++ Redistributable Package

EFM-100 Atmospheric Electric Field Monitor V1.27-100kV Software for Windows
Special version of the EFM-100 display software for 99.9kV/m maximum electric field. Requires the EFM-100 to be over-corrected by a factor of 5 (for example: install 0.1X attenuator instead of 0.5X)

EFM-INV2 / EFM-INV3 Installation Instructions (Requires Adobe Reader)
Instructions for installing the EFM-INV2 or EFM-INV3 Field Mill Inverting Kit.

EFA-20 / EFA-21 USB Adapter Driver Download
Download and run this driver installation program to install the EFA-20 / EFA-21 device driver or if you want to make a backup disk and save the files onto an external or USB flash drive. Compatible with all versions up to Windows 11.

EFM-100 Software developer’s kit
DLL’s with example code and demo application for programmers wishing to write their own software for the EFM-100.

USB Adapter Cable (GREY) Device Drivers
Use this set of drivers if your USB adapter cable has smoked grey ends. Extract the files into a temporary directory, then run the appropriate install program for your operating system.

USB Adapter Cable (BLUE) Device Driver Install for Windows
USB Adapter Cable (BLUE) Device Driver Install for Windows 8, 10
Use this driver if your USB adapter cable has blue ends. Run this program and then click on the Driver Install button in the center of the dialog.

USB Adapter Cable (BLACK) Device Driver Install Compatible with Windows 8,7, Vista, and XP.
Use this driver if your USB-RS232 adapter cable has black ends. After running this driver installation program, you may need to restart your computer before plugging the cable into an available USB port.
NOTE: If you get Error Code 10 after installing these drivers due to a Windows automatic update,
click here for detailed instructions to fix the driver error.

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