EFM-100 Atmospheric Electric Field Monitor

It is based on measuring the static electric field generated by storm clouds to detect nearby lightning strikes and the atmospheric conditions that precede them.

SKU: 9100 Category:


Anticipating lightning strikes

EFM-100 is based on measuring the static electric field generated by storm clouds to detect not only nearby lightning strikes, but also the atmospheric conditions that precede them. It stands out for its high accuracy at close range, as it focuses on the electrical discharges that occur within a radius of up to 38 Km, ignoring the furthest. The included software for Windows allows viewing data and graphs in real time on a computer.

Highly resistant design

The instrument is made of aluminium and stainless steel to ensure high resistance to weathering. The fiber optic cable for connection to the computer provides excellent electrical insulation.

EFM-100 can be mounted on the optional tripod made of galvanized steel. The base of each leg can be tilted to be fixed in all types of locations, such as roofs or uneven terrains.

Software with configurable alarms

The software displays the date, time and distance of the lightning strikes, and allows setting up visual and audible alarms for strong fields, very strong fields and single electrical discharges. The alarms for strong and very strong fields are triggered when the magnitude of the electric field exceeds a threshold preset by the user, while the alarm for individual electrical discharges is triggered upon detecting a sudden change in the electric field.

The data of the electrical discharges are stored permanently on the hard disk of the computer, allowing to check them again afterwards and to know the trend of the storms. The software has free regular updates that enhance, even further, its benefits.

Alarm module (optional)

The ERL-10 module allows activating external devices based on the alarms programmed on the EFM-100.

Available versions

EFM-100 is available with a 30, 45 or 60 meters long cable. All versions allow connection to the computer via RS-232 or USB.