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Kestrel 3500DT (0835DT) 3500 Delta T Handheld Agriculture Spraying Meter

by Kestrel
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Original price $261.00 USD
Original price $261.00 USD - Original price $261.00 USD
Original price $261.00 USD
Current price $209.00 USD
$209.00 USD - $209.00 USD
Current price $209.00 USD
In stock

Shipping & Returns

Free Shipping in the USA | 45 Day Returns | Ships Worldwide

The Kestrel 3500DT Delta T Weather Meter Measures

  • Wind Speed / Air Speed
  • Delta T
  • Altitude (Barometric)
  • Dew Point Temperature
  • Heat Stress Index
  • Relative Humidity
  • Temperature
  • Wet Bulb Temperature (Psychrometric)
  • Wind Chill
  • Barometric Pressure


5 Year Manufacturer's Warranty

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Achieve optimal results while preserving crops with the Kestrel 3500 Delta T Agriculture Spraying Meter.

The Delta T feature of Kestrel 3500DT provides reliable measurements to determine appropriate pesticide application conditions and choose the ideal spray nozzle for the job. (This is accomplished by determining the difference between wet bulb and dry bulb temperatures, a reliable indicator of chemical evaporation rates.)

The Kestrel 3500 Delta T provides barometric correction for its wet bulb temperature readings, guaranteeing precision across a wide range of environmental conditions, including low-pressure days, high altitudes, and arid climates where Delta T observation is essential. This premium pocket weather meter offers unparalleled accuracy.


  • 3-Button Control
  • Backlight
  • CR2032 Coin Cell Battery (Average Life 300 Hours)
  • Data Hold Function
  • Drop-Tested, MIL-STD-810G
  • Easy-To-Read Display
  • Kestrel Certificate of Conformity
  • Neck Lanyard
  • Patented Impeller and Sensor Technology
  • Slip-On Protective Cover
  • Time of Day
  • User-Replaceable Batteries
  • User-Replaceable Impeller

Whats in the box?

  • Kestrel Meter
  • Neck Lanyard
  • Slide-On-Cover
  • CR2032 Coin Cell Battery (average life 300 hours)
  • Kestrel Certificate of Conformity.
  • 5 Year Warranty Manufacturers Warranty


Kestrel Weather & Environmental Meters are crafted with precision in the United States and supported by a five-year manufacturer warranty. Utilizing contemporary innovation and engineering, Kestrel Meters are engineered for accuracy in varying environmental conditions. Durable and reliable, each Kestrel is tested for drop-resistance and waterproofing and capable of buoyancy in water.


Customer Reviews

Based on 4 reviews
Stuart W.

Love it, exactly what I expected and accurate. Perfect for Hawaii's environment.

Tim W.

This is an amazing little device, it is just what I wanted for my sprayer, it stores easily in my armrest and quickly gives me the vital information I need to record before I begin application!

Ares T.

Simple, nice, excellent.


Great product easy to use and reliable. I use it for weed control and fox/cat trapping/control. was awesome. Product was on my door in 4 days. 100% satisfied and would recommend them to anyone (and have).

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