The EFM-LDS-100 Electric Field Mill short-range sensor (<20 miles/32 km) constantly monitors for lightning and activates graphical display alerts on a computer or laptop when lightning is detected. There are two high electric field alarms, and lightning distance ranges that are completely customizable to alert you when there is nearby lightning. The software will also reset back to a green All Clear state when no lightning has been detected within the range.
Used for alerting of nearby thunderstorms (up to 24 miles/38 km away) and also has the ability to detect high electric-field conditions which precede the first lightning strike. For close lightning strikes the EFM-100’s accuracy is unsurpassed.
Ordering Information
| Alerts | |
| High Field Alerts | 2 configurable levels (Red, Yellow) |
| Strike Distance | 0 – 24 miles / 0 – 38 km |
| Electric Field Range | -20 kV/m to +20 kV/m |
| Typical Range of Interest | -5 kV/m to +5 kV/m |
| Accuracy | 5% +/- 0.05 kV/m |
| Response Time | 0.1 seconds |
| Software Display Indicators | |
| All Clear (Green) | Green display when no lightning is detected and electric field levels are below set alarm levels |
| High Field Alert (Yellow) | On when electric field level goes above configured high field level and below configured very high field level |
| Very High Field Alert (Red) | On when electric field level goes above configured very high field level |
| Lightning (Purple) | On when lightning is detected |
| Software Specifications | |
| Operating System | Microsoft Windows 8, 7, Vista, XP, 2000, NT |
| Communications | |
| Data Port | RS-232 (RS-485 option available) |
| RS-232 Format | Delimited ASCII Sentences |
| Baud Rate | 9600 baud, 8N1 |
| Resolution | |
| Digital Output | 0.01 kV/m |
| Analog Output | Infinite |
| Analog Data Differential | 1V per kV/m |
| EFM Data Connection | 62.5/125 Multimode ST fiber optic |
| Power | |
| Connector | 2.1mm/5.5mm coaxial, screw terminals |
| DC Power Supply | 11.5VDC – 14VDC, 0.5A |
| AC Power Supply | 120VAC US plug or 120-240VAC international multi-plug wall adapter |
| Power Consumption | 4 W |
| Enclosure | |
| Material | Aluminum |
| IP Rating | 44 |
| Dimensions | 6.7” dia x 5” (17cm dia x 13cm) |
| Weight | 2.2 lbs (1kg) |
| Shipping Weight | 13 lbs (5.75kg) |
| Shipping Dimensions | 26”x10”x11” (66cm x 25.4cm x 28cm) |
| Environmental | |
| Operating Temperature | -40 to 60°C / -40 to 140°F |
| Operating Humidity | 0 to 99% non-condensing |
| Agency Approvals | CE, FCC, cULus, C-tick |
| Warranty | 1 Year |
| Ordering Information | |
| EFM100-120V-100FT Kit | EFM-100 Electric Field Mill 120VAC 60Hz Power Supply 100 Feet (30m) Cable* Pole mount inverting kit* |
| EFM100-220V-100FT Kit | EFM-100 Electric Field Mill 220VAC 50-60Hz Power Supply 100 Feet (30m) Cable* Pole mount inverting kit* |
