When you're out in the field — whether you're a hunter, sailor, firefighter, HVAC technician, or outdoor enthusiast — you need weather data you can trust. The Kestrel 3500 Pocket Weather Meter delivers exactly that: six critical environmental measurements in a rugged, pocket-sized instrument built to go wherever you go.

What Does the Kestrel 3500 Measure?

The Kestrel 3500 packs serious capability into a compact form factor. In a single device, you get:

  • Wind Speed — switchable between mph, km/h, ft/min, m/s, knots, and Beaufort scale
  • Temperature — in Fahrenheit or Celsius
  • Relative Humidity
  • Barometric Pressure — in inHg, hPa, or mb
  • Heat Stress Index — critical for worker safety and athletic performance
  • Wind Chill — essential for cold-weather operations

That's six measurements from one instrument that fits in your shirt pocket.

Built Tough. Built in the USA.

Nielsen-Kellerman has been engineering Kestrel meters in the USA for decades, and the 3500 is no exception. It's fully waterproof, and it floats — so a slip off the dock or a dunking in the rain won't end your day. The simple three-button interface means you can operate it with gloves on or in low-light conditions without fumbling through menus.

Who Is the Kestrel 3500 For?

The 3500 hits a sweet spot between simplicity and capability. It's ideal for:

  • Outdoor professionals — guides, rangers, search and rescue teams
  • Hunters and shooters needing wind and environmental data in the field
  • Sailors and boaters monitoring wind and pressure on the water
  • HVAC and industrial technicians tracking heat stress and humidity
  • Athletes and coaches monitoring conditions for training and competition

Backed by a 5-Year Warranty

Every Kestrel 3500 ships with a 5-year warranty and a certificate of conformity — a reflection of the confidence Nielsen-Kellerman puts into every unit. This isn't a disposable gadget; it's a professional instrument built to last.

What Customers Are Saying

With an average rating of 5.0 stars across 26+ verified reviews, the Kestrel 3500 consistently earns praise for its accuracy, durability, and ease of use. Customers in demanding environments — from wildland firefighting to offshore sailing — rely on it as a daily-carry tool.

Ready to Add the Kestrel 3500 to Your Kit?

If you need reliable, real-time environmental data in a rugged, portable package, the Kestrel 3500 is hard to beat. Designed and built in the USA, waterproof, and backed by a best-in-class warranty — it's the kind of instrument that earns a permanent spot in your gear bag.

Shop the Kestrel 3500 Pocket Weather Meter →

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