Operators on airports, renewable energy sites, ports, construction areas and industrial plants need to act before the first strike, not after. The BTD-1 supports that decision by monitoring the quasi-electrostatic field and detecting cloud-to-ground, intra-cloud and cloud-to-cloud lightning, while also recognizing charged precipitation and strong electric field conditions linked to developing storms overhead.
A dedicated Severe Storm function highlights highly active cells associated with large hailstones and damaging weather, giving site teams a clearer basis for risk decisions.
Four configurable risk levels (All-Clear, Caution, Warning, Alert) adapt the response to each site.
Detection reaches 35 km as standard and up to 83 km as an option, with a false alarm rate below 1% within 35 km.
RS422 output, three internal relays, GPS/GNSS timing and the Lightning Eye software cover integration, monitoring and data logging.
IP66 housing, no moving parts and M12 connectors keep installation and upkeep straightforward.
Highlights:
- Earlier storm warning — Detects overhead thunderstorm conditions before the first nearby strike, supporting timely safety decisions.
- Severe Storm function — Flags highly active storm cells linked to large hailstones and damaging weather events.
- Range up to 83 km — 35 km detection as standard, extendable to 83 km to suit wider site coverage needs.
- Reliable detection — 97% efficiency for a single flash within 35 km and false alarm rate below 1%.
- Built for outdoor use — IP66 aluminum housing with no moving parts for low-maintenance fixed installations.
- Integration ready — RS422 output, three relays, GPS/GNSS timing and Lightning Eye software for monitoring and logging.












