
Supplier
Bristol Industrial & Research Associates Ltd (Biral)
BTD-200 Lightning Warning System
Self-contained lightning warning system giving up to 20 minutes advance warning.
Pricing
Request a quote for current pricing, lead time and delivery to your airport.The BTD-200 is a complete, out-of-the-box lightning warning system that detects all lightning activity using quasi-electrostatic measurement of the local electric field and charged precipitation, providing warnings up to 20 minutes before lightning begins. It ships with the detector, Lightning Works software and power supply. It carries EN50536 Class 1 and IEC62793 Class A certification.
Specs at a glance
Technical specifications.
| Detection range | 35km (22 miles), 1km range resolution |
| Principle | quasi-electrostatic field + charged precipitation sensing |
| Up to 20 minutes warning before lightning begins | |
| Detection efficiency | 95% single flash, 99.9% for 3+ flashes; false alarm <2% |
| Power | 9-30V DC, 110/115V or 230/240V AC; <5W |
| Operating temperature | -20C to +50C; weight 4.3kg; IP66 |
| Outputs | RS422 to PC, RS485 for wide-area sounders, 3 volt-free relays |
| Standards | EN50536:2011+A1:2012 Class 1, IEC62793 Class A |
Best for
Use cases.
- ›Site lightning safety warnings (airfields, helidecks, ground operations)
- ›Automated email/SMS alerts via Lightning Works software
- ›Wide-area audible warning via RS485 sounders
Cross-shop the category
Replacements & compatible alternatives.
Comparable products from other suppliers. Cross-shop on specs — confirm exact fit and compatibility with the supplier before specifying.

