Stock
In stock, usually ships within 24 hours
Usually ships in 1-3 days
Usually ships in 1-2 weeks
Drop ships from manufacturer
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Returns
If you are not satisfied with your purchase, please request a Return Material Authorization (RMA) by emailing your account representative or the general customer support address: customercare@fondriest.com
Why Buy from Fondriest
At Fondriest, we are committed to providing high quality products at affordable prices with the industry’s best support. Additionally, we offer:
- Discounts
High volume purchases lead to favorable pricing, which is passed on to the customer by way of discount off MSRP.
- Assembly, Test and Calibration
Sensors and instruments are assembled, tested and calibrated prior to shipment. A calibration report is included.
- Lifetime Technical Support
A knowledgeable staff of application engineers provides ongoing support for the life of the product.
- Product Training
Application engineers are available for webinars or personalized, on-site start-up and training. Extensive measurement technology, product troubleshooting and instrument repair workshops are offered at the factory.
- Extended Warranties
Warranties extended beyond factory standards are offered on many items to ensure a lasting useful life.
- Repair
A factory-authorized service center provides fast-turnaround product repair and annual maintenance.
- Rental
Rental equipment is available to minimize downtime and cover equipment needs when projects expand.
- Communications
Call, email or chat online with application engineers. Email correspondence is responsive and a toll free number is available for added convenience.
- Quick Ship
Many orders ship on the same day and expedited shipping is available. If a product cannot be shipped immediately, customers are notified by phone or email.
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Description
Features
- Exterior temperature, humidity, and pressure sensors for fast and accurate readings
- Automatically store measurements, even when the unit is turned off
- 5-year warranty

| Image | Part # | Product Description | Price | Order | Stock |
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0840ORA | 4000 Pocket Weather Tracker, safety orange |
$249.00
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0840BORA | 4000 Pocket Weather Tracker with Bluetooth, safety orange |
$339.00
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Add to Cart Get Quote |
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| Image | Part # | Product Description | Price | Order | Stock |
|---|---|---|---|---|---|
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0804USB | USB Interface kit |
$119.00
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0802 | Relative humidity calibration kit |
$99.00
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0801 | Replacement impeller |
$19.00
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0805 | NiteIze carrying case |
$19.00
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0807 | Portable tripod |
$25.00
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0792 | Collapsible tripod |
$89.00
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0791 | Rotating vane mount |
$69.00
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0806BLK | Tactical case, black (MOLLE-compatible) |
$39.00
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0806BRN | Tactical case, brown (MOLLE-compatible) |
$39.00
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0806GRN | Tactical case, ranger green (MOLLE-compatible) |
$39.00
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Add to Cart Get Quote |
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Details
The Kestrel 4000 measures barometric pressure, pressure trend, altitude, relative humidity, heat stress index, dewpoint, wet bulb temperature, density altitude, wind chill, air, water & snow temperature, current wind speed, average wind speed, and maximum wind speed.
- Waterproof and floats
- Easy to read, backlit display
- Time and date
- Exterior temperature, humidity, and pressure sensors for fast and accurate readings
- Humidity sensor can be recalibrated in the field with Relative Humidity Calibration Kit.
- Minimum, maximum, and average values
- Automatically store measurements, even when the unit is turned off
- Manually store measurements with the press of a button
- Customizable data storage - 2000 data points
- Graph and recall trends
- Customize screens to display user-selected measurements
- Data charting
- Data upload (with optional interface)
- Five languages (English, French, Spanish, German, and Italian)
- User-replaceable impeller
- Flip-top impeller cover allows use of other functions while protecting the impeller
- US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074
- All instruments and accessories are completely assembled in the USA
- 5-year warranty
- (1) 4000 Pocket Weather Tracker
- (1) Soft carry pouch
- (1) Neck lanyard
- (2) AAA batteries
- (1) Kestrel Certificate of Conformity



