Our Review of the Kestrel Meter 4100
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All Kestrel Pocket Weather Meters are made in the USA and covered by a 5-year warranty against manufacturing defects. Additionally, every single Kestrel manufactured is calibrated for every single value, either directly against NIST-traceable standards or against an intermediary standard that is calibrated daily. Every unit is shipped with a FREE Certificate of Conformity that states what calibrations were performed, and the certified performance specifications. |
The Kestrel 4100 Pocket Air Flow Tracker is the HVAC technician's best friend. With a 4100 on hand, facility managers, field installation technicians, and other HVAC specialists will be able to calculate cubic feet per minute (CFM) in seconds. No calculators, no equations – just a pocket-sized Kestrel 4100 Air Flow Tracker. Simply enter the duct shape and dimensions into your Kestrel Meter, hold the 4100 near the duct, and the volume air flow is calculated automatically.
Your Kestrel 4100 also has the data tracking capabilities of all the weather meters in the 4000 series, as well as charting and computer interface functions. Few tools on the market will save you as much time (and paperwork) as the 4100. Designed specifically for HVAC use, the Kestrel 4100 does not have the full range of weather tracking functions available with the *Kestrel 4200 or the flagship Kestrel 4500.
- The Kestrel 4100 is equipped with a backlight, making it especially useful for HVAC work on poorly lit work sites.
Uses of the Kestrel 4100 extend far beyond just air flow tracking. Like every Kestrel Meter, the 4100 has accurate wind and temperature tracking functions and is waterproof.
The Kestrel 4100 accurately measures:
- Wind Chill
- Air, Water, and Snow Temperature
- Displayed in Fahrenheit or Celsius w/ accuracy of +/-1°
- Current, Average, and Maximum Wind Speed
- Wind Speeds displayed in: Beaufort Wind Scale; Knots; MPH; KPH; or Feet Per Minute
- Relative Humidity
- Dewpoint
- Heat Stress Index
In addition, the Kestrel 4100 offers:
- Customizable navigation and data displays
- Tracking and storage of up to 2000 data points
- Manual and automatic data storage
- Graphing
- Computer interface capability
*We Also Recommend:
The Kestrel 4200 Pocket Air Flow Tracker, which has all the features of the Kestrel 4100,
plus, these features and functions:
- Humidity Ratio
- Pressure Trend Tracking
- Wet Bulb Temperature
- Barometric Pressure
- Altitude
- Density Altitude
NEW! Be sure to download Kestrel's new, 2007 release of Kestrel Communicator software, which makes any 4000-series Kestrel meter coupled with a Kestrel USB Interface or Serial Port Interface all the more powerful. Click here to learn more, or simply Download Now!
Specifications
- Dimensions - In
- 5 x 1.8 x 1.1
- Dimensions - mm
- 127 x 45 x 28
- Weight - Ounces
- 3.6
- Weight - Grams
- 102
- Air flow in cfm, L/s, m³/s, m³/m, m³/h
- Air Velocity in ft/m, mph, m/s, km/h, kts, Beaufort
- Temperature in °F or °C
- Humidity in %
- Additional measurements of dewpoint, wind chill and heat stress index
- Waterproof and floats
- Time and date
- Easy-to-read, backlit display for low-light conditions
- Multi-function 3-line display
- Exterior temperature, humidity, and pressure sensors for fast and accurate readings
- Humidity sensor can be recalibrated in the field in the field with the Kestrel Relative Humidity Calibration Kit.
- Minimum, maximum, and average values
- Automatic and manual data storage
- Customizable data storage - 2000 data points
- Data charting
- Data upload (with optional interface)
- Five languages (English, French, Spanish, German, and Italian)
- Patented, user-replaceable impeller (no tools needed)
- Ultralight impeller is mounted in jewel bearings for precision, wide range of speeds and low startup speed
- Impeller is shock-mounted in a glass-reinforced plastic housing
- 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
- Actual size: 5.0 " x 1.8" x 1.1 " (size w/out case)
The Kestrel 4100 also includes:
- Soft carry pouch
- Wrist and neck lanyards
- Five Year Warranty
- 2 AAA batteries with average life of 400 hours
- Kestrel Certificate of Conformity
Kestrel Meter 4100 Reviews
All Customer Reviews
- Average Rating:
- Highest Rating:
- Lowest Rating:
- Number of Reviews:
- 9
Good meter - need to ask about possible upgrade
Reviewer: Phillip Ross , Columbus, IN
Date: September 19, 2007
Really like the way the meter is set-up. However, I did not properly spec it out and have now found that the Kestral meter 4500 was the proper choice. Is it possible to return and re-order better model?
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Kestrel Used in Unusual Field
Reviewer: Derek W. Bartlett , Massachusetts
Date: July 25, 2006
I have to say the Kestrel 4100 meter has been an asset to our team. We are paranormal investigators and need to know what the atmospheric conditions are every 5 minutes. The weather plays a huge role in our field. Before purchasing the Kestrel 4100 I was at a loss for all the accurate information I needed to obtain. Now, with the Kestrel 4100 we get the data we need and more. It is very easy to use and with the light up screen helps us use it in the dark. I have been asked by many colleagues in our field about the unit and have recommended Kestrel to everyone in our field of studies. Keep up the great Job.
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Excellent Product!!
Reviewer: Warren Wilber , New Bern NC
Date: July 25, 2006
The Model 4100 in combination with the Link for computer has greatly improve my balancing of residential and light commerical systems as well as reduced timely calculations and paperwork.
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Outstanding Equipment
Reviewer: J A Jones , Lexington, KY
Date: July 21, 2006
I use my Kestrel 4100 in reporting weather events to the National Weather Service. It provides amazing data at the touch of a few keys.
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Kestrel 4100
Reviewer: Bob Ziehm , Las Vegas NV
Date: July 21, 2006
Excellant. Have used it many times during real world rescue missions. No fail!
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The 4100 clears our name!
Reviewer: Anonymous , Alaska
Date: July 21, 2006
I found the 4100 to be the perfect solution to taking the many measurements we often need. Having CFM w/Deg F or C and %RH in such a small package is great! I recently used the 4100 to demonstrate the air balance had not been done properly, confirming that was the cause of the occupant discomfort, not my control system. My name and reputation was cleared... thank you Kestrel!
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Reliable Feature Packed Product
Reviewer: Anonymous , IL
Date: July 21, 2006
Kestrel 4100 is a good product. Delivers all that it promises. Quality instrument. Good customer service.
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Problems
Reviewer: Brian M , AZ
Date: July 21, 2006
we have several Kestral Meters... when holding them side my side, they all show different RH, Temp, etc. we also got the computer interface, complete waste of money! hard to use with the computer hooked up, difficult to get the software talking to the unit, and the data was just a serial dump! no trending, cute graphics, no screen that shows all the information in a neet, easy to read interface.
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Industrial Hygiene User
Reviewer: Anonymous , Washington
Date: July 21, 2006
I use my 4100 frequently when conducting air monitoring and sampling. It is very easy to use and gives most of the information I need as an Industrial Hygienist. I would like a way to perform daily functional calibration checks in order to determine accuracy and precision as the reports I prepare are under great technical scrutiny. Also, the computer program I purchased is worthless to me. I expected to be able to prepare easy to read graphs. Overall, it is a fun and useful tool for the price. I would like to note that I sent in my registration card, but never received my promised gift . . . It's okay, I still recommend Kestrel.
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