Prevent drift, protect the block
Confirm wind speed and direction before the first pass so the application stays inside label limits.
Kestrel 3550AGSOL-CS & AIRAg ready
Kestrel 3550AG spraying weather meterwith Bluetooth LiNK
Field-level wind, Delta T and humidity with a built-in compass — measured at boom height and recorded against the job.
- Measures wind, direction, Delta T, temperature and humidity at the field — not the nearest airport
- One-click Snapshot logging with a GPS timestamp in the free Kestrel app
- Pairs directly with SOL-CS and AIRAg SOL-CS, so readings land on the job record
- Waterproof to IP67, drop-tested to MIL-STD-810G
- Supplied from Australia with local support and calibration guidance
Freight confirmed before dispatchLocal Australian support
Fully integrated
This meter is built into both SOL-CS and AIRAg SOL-CS.
Switch it on and the readings land on the job you are working — time-stamped, tied to the treatment area, ready for reporting and audit.
Why it matters
Spray within conditions you can prove.
Off-target drift damages neighbouring crops and puts people, livestock and wildlife at risk. Measuring at the site of application — at boom height — and documenting it is the difference between a defensible record and no record at all.
Field-level, not airport-level
Airfield readings are taken on flat ground and at height — they routinely read faster than the air over your boom.
Records for the file
Snapshot the reading with a GPS timestamp and export the history as documented evidence.
Instrument
What it measures and does.
A high-contrast, sunlight-readable display switchable between °C/°F, km/h, m/s, mph, ft/min, knots, Beaufort and Delta T.
01
Environmental measurements
- Wind speed — current
- Maximum wind gust
- Average wind speed
- Wind direction
- Delta T
- Barometric pressure
- Pressure trend
- Altitude
- Air, water & snow temperature
- Wet bulb temperature
- Dew point temperature
- Relative humidity
- Heat stress index
- Temperature humidity index (THI)
- Wind chill
02
Features & functions
- Hard slip-on protective cover
- Three-button control
- White/blue backlight
- Data hold function
- Real-time clock with date
- High-contrast monochrome LCD
- Quick-response external thermistor
- Patented user-replaceable impeller
- Patented quick-response RH sensor
- Waterproof to IP67
- Drop-tested to MIL-STD-810G
- Assembled in the USA
03
In the box
- Hard slip-on protective cover
- Neck lanyard
- CR2032 coin cell battery (approx. 300 hours)
- Kestrel certificate of conformity
- Instruction manual
- 5 year Kestrel warranty
In the box
Ready the moment it arrives.
Support & documentation
- 3550AG user manual (PDF)
- Kestrel Australia warranty terms
- Free Kestrel app (iOS & Android)
- Guidance on calibration and impeller replacement
Compare
3550AG or 5500AG?
Both meters measure the same spray conditions and both pair with SOL-CS. The 5500AG adds component wind calculations, station pressure and density altitude, and logging that runs on the meter itself.
3550AG
Capability
Wind speed, average and gust✓
Wind direction with compass✓
Delta T, wet bulb, dew point✓
Temperature, humidity, THI✓
Crosswind, headwind / tailwind✕
Station pressure & density altitude✕
Air flow (CFM)✕
On-board data logging✕
Bluetooth to the Kestrel app✓
Vane mount for stationary useOptional
5500AG
Capability
Wind speed, average and gust✓
Wind direction with compass✓
Delta T, wet bulb, dew point✓
Temperature, humidity, THI✓
Crosswind, headwind / tailwind✓
Station pressure & density altitude✓
Air flow (CFM)✓
On-board data logging✓
Bluetooth to the Kestrel app✓
Vane mount for stationary useIncluded
Measurements as published by Kestrel Instruments. Accessories and bundles confirmed at the time of order.
Need freight, a fleet order or advice?
Talk to us about lead times, multiple units, or pairing the meter with SOL-CS so field readings land directly on the job record they belong to.