Biral BTD-300 Lighning Detection Radar

The BTD-300 is a standalone thunderstorm/lightning detection sensor that detects and warns of overhead lighting before the first strike.

  • Warns of overhead lightning before the first strike
  • Range of 83km – exceeds FAA requirements
  • Meets FAA performance requirements for Aerodromes
  • EN50536:2011+A1:2012 requirements for a Class 1 detector
  • IEC 62793 performance requirements for a Class A detector
  • Serial or Ethernet output
  • Unique quasi-electrostatic operating principle virtually eliminates false alarms


Biral Lightning Detection Radar – BTD-300

The BTD-300 lightning detection radar from Biral is capable of detecting lighting, before the first strike, up to 83km away.

The BTD-300 utilises a unique quasi electrostatic operating principle, this gives superior lightning detection capabilities but with a very low false alarm rate.

With an ethernet or serial output, the BTD-300 can be easily integrated into a weather monitoring system or directly into a standard PC when using the supplied software.

As the BTD-300 meets EN50536:2011+A1:2012 requirements and IEC 62793 performance requirements for a
Class A detector and FAA performance criteria, it is perfect for installations at aerodromes.

Lightning Detection Cloud-to-Cloud, cloud-to-ground and intracloud lightning discharges
Output Ethernet or Serial data
Detection efficiency 95% for single lightning flash (any type)
99% for a storm with 2 flashes
99.9% for a storm with 3 flashes
For flashes within 56km
Range 83km (51 statute miles)
Range measurement uncertainty 0 to 20km  ±5km
20 to 83km  ±10km
Range measurement repeatability 0 to 20km  ±300m
20 to 83km ±1000m
Range resolution 10m
False alarm rate <2%
Maximum flash rate 120 flashes /minute
Time of flash Nearest 10s (internal clock)
Measurement principle Passive, quasi-electrostatic
No moving parts
Direction (optional extra) Resolution 1°

BTD-300 Lightning detection compliance

  • CE Certified
  • EMC compliance with EN61326-1997, 1998, 2001
  • Compliance with EN50536:2011+A1:2012 for a Class 1 detector
  • Performs in accordance with IEC 62793 for a Class A detector

Optional extras and alternative features

  • Direction finder
  • Heating options to withstand a greater temperature range -40°C to 60°C
  • Relay output