Avoid spray drift and maximize application results with this portable and connected handheld weather meter. Off-target pesticide drift can not only cause damage to nearby vulnerable crops but also pose a serious threat to people, livestock, wildlife, and the surrounding community.
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Farmers put themselves and their operations at risk every time they spray a field without documenting the wind speed and environmental conditions. The 3550AG with Bluetooth Connectivity makes it easy to instantly capture and log accurate, field-level weather data with just one-click.
No matter the size of your operation – effective herbicide and pesticide application is critical to your success. Prevent drift, eliminate waste, ensure safety and effectiveness – it all starts with monitoring your conditions.
The Kestrel 3550AG can easily be switched between °F, °C, mph, km/h, ft/min, m/s, knots, Beaufort, and Delta T.
Every Kestrel is individually calibrated to NIST-traceable standards and comes with a free Certificate of Conformity (Individual NIST certificates and recalibration are also available.) If your application demands regular calibration, simply pop in a new impeller and the Kestrel air velocity meter is restored to like-new factory calibration standards.
Measures:
Why it’s so important to take Delta T measurements before crop spraying.
Specifically, Delta T is the difference between the Dry-bulb and the Wet-bulb temperature. This measurement is crucial because the Delta T plays a major role in thermal drift, which is a result of unstable meteorological conditions. If not properly considered, chemical droplets can be carried on thermal eddies and deposited some distance away from the target site.
The Kestrel 3550 AG incorporates barometric pressure correction in its wet-bulb temperature calculation, ensuring accuracy even on low-pressure days, at high altitudes, and in very dry weather when Delta T monitoring is important. No other pocket weather meter offers this feature with this level of accuracy.
Delta T has become one of the standard indicators for acceptable spray conditions. It is indicative of evaporation rate and droplet lifetime. The diagram below relates air temperature and relative humidity to values of Delta T:
The Kestrel 3550AG is important in Agriculture because it shows farmers when it is a good time or not a good time to spray chemicals on crops or weeds. For spraying, the Delta T should ideally be between 2 and 8. Anything below 2 is too humid, and the conditions are too dry when it is above 10. This is at the touch of a button and instant.
In Australia, Delta T readings are required before every spray. The Kestrel 3550AG Meter can give you an accurate, commercial-grade measurement of the Delta T in an instant so you can spray on schedule.
A slip-on protective cover
Neck lanyard
CR2032 coin cell battery (average life 300 hours)
Kestrel Certificate of Conformity
5-year warranty
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As a leading Australian manufacturer, we specialise in crafting innovative technical solutions for environmental monitoring, workplace safety, emissions measurement, and post-harvest technologies. Our commitment to excellence drives us to deliver cutting-edge products that empower industries and organisations to thrive in a rapidly evolving world.
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