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The Severe Storm Alarm activates if the number of lightning strikes per minute exceeds a preset limit
Vantage Pro2 Plus provides accurate
Heat Index
Hiking & Mountaineering
compact ultrasonic anemometer
4000g Weather Balloon, Natural Latex Weather Balloon Accessories The Severe Storm Alarm activatesProduct Information Weight: 4000 grams Material: Latex Inflation Gas: Helium Hydrogen Payload: 4 18 lbs Rate of Ascent: 320m min Burst Diameter: 50. 59ft Burst Altitude: 118,000 130,300ft Neck Diameter: 5. 0cm Neck Length: 12. 0cm Packaging Options: Standard Manufacturer's Packaging: Balloon sealed in the manufacturer's plastic bag. UV Resistant Packaging (+$2): Balloon, in manufacturer's packaging heat sealed or banded in a black UV Resistant Bag.
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