Thunderstorm Detector (BTD-350)

Introduction to Sensor

The BTD-350 Thunderstorm Detector is an advanced lightning detection sensor designed to provide early warning of approaching thunderstorms and overhead lightning risks. Using a unique quasi-electrostatic detection principle, it accurately detects both cloud-to-cloud and cloud-to-ground lightning up to 83 km away with an exceptionally low false alarm rate. Reliable, virtually maintenance-free, and easy to integrate, the BTD-350 is ideal for industrial, meteorological, aviation, and critical safety applications requiring real-time storm monitoring and lightning alerts.

Specifications

Parameter	Specification
Detects	Cloud-to-cloud, cloud-to-ground, and intra-cloud lightning discharges
Output	Ethernet or Serial data (RS422)
Range	83 km (51 statute miles)
Detection Efficiency	95% for single lightning flash (any type) 99% for storm with 2 flashes 99.9% for storm with 3 flashes For flashes within 56 km
False Alarm Rate	< 2%
Range Measurement Error	0 to 20 km: ± 5 km 20 to 83 km: ± 10 km
Maximum Flash Rate	120 per minute
Time of Flash	Nearest 10 ms (internal clock)
Measurement Principle	Passive, quasi-electrostatic, no moving parts
Direction (Optional)	Reported to nearest degree
Sensor Power	110 to 240 Vac, 50–60 Hz Universal
Operating Temperature	-40°C to 60°C
Operating Humidity	5% – 100% RH
Protection Rating	IP66
Certification & Compliance	CE Certified
EMC – General	EN 61326:2013
EMC – Marine	EN 60945:2002, Sections 9.2.2 & 9.2.3
Corrosion Resistance	EN 60945:2002, Section 8.12 EN 60068-2-52:1996 Test Kb
Vibration	EN 60945:2002, Section 8.7 EN 60068-2-6:2008, Test Fc
Detector Compliance	EN50536:2011+A1:2012 for a Class 1 detector IEC 62793 for a Class A detector
Environmental Compliance	RoHS and WEEE compliant
Weight (Sensor Head)	25 kg