Upgraded Version Digital Handheld Anemometer - Thermometer, Wind Speed Meter for Measuring Air Velocity, Air Flow, Temperature Using Display Units: Miles, Kilometers, Meters, Feet, Knots - Pyle PMA90

buen producto. NO mide temperatura ni humedad del aire como se lee en la publicación, lo que decepciona un poco puesto que se paga pensando en que no se ocuparán mas dispositivos para el objetivo. fuera de ello viene con buena calidad de materiales, bien protegido en su estuche y cerrado.

Honestly? It does exactly what I wanted it to do which is measure CFM from ceiling and floor registers for ducted heating systems. Very easy to set up, super easy to use, I wasn't looking for the most accurate device in the world, just a unit that can give me relative values across the board to balance HVAC system. I think it's great!

I read the other reviews where people said they used this for testing their home HVAC systems and tried this as a result. My only concern with a meter like this is that my low-flow HVAC system would not have enough flow to spin it, but this unit worked perfectly.WOULD I BUY THIS AGAIN?> Yes. It's a nice unit.PROS:> Works with very low speeds, easily down to 1mph, and worked well with my HVAC system.> Fan is attached to a nice length cable, and is perfect for reaching vents, etc., while also not being too long.> Cable unplugs for storage.> Included a battery & foam lined case.> Included thermometer works nicely (I didn't even read the description when I bought this and didn't know that was an included feature).> Has a neat light sensor and automatic backlight - when you go into a dark area, the screen lights up proportionally to how dark the room is.CONS:> The switch to switch between Fahrenheit and Celsius is underneath the battery, so you have to plug the battery in, then hold down the tiny button for a few seconds, and then you can put the battery in and close the lid.> The battery compartment lid has no access hole for your finger tip, so trying to remove it requires you to smack the unit against your hand to jostle the battery door free.NOTE: The "Listing" photo that Amazon has at the time of purchase (2/2014) was wrong - it shows a red unit - but the unit is actually yellow and has a wired attachment fan that you can hold up to the vent which has a cable that is about 3' long. The "Product" picture Amazon has on their site today shows the wrong product, but it's close. My model has the same buttons, but in a different layout, so I am sure it's just cosmetic. I've uploaded a picture of the unit I received.

Unit arrived in great condition. Comes with a battery and travel case. Unit works well down into about the 40-50 ft/min range, below that slight air movement didn't have enough velocity to turn the blade. But well worth the price.

This is a nicely made unit and it seems to work well.I bought this to check out some changes to my HVAC duct work, and the PMA90 let me measure the improvement in air flow before and after. I used the Average feature to get an average reading for the duct area and determine flow. I also plan on using it to measure changes in air flow for new HVAC filters versus old, but I haven't tried that yet.It comes in a fitted, foam-lined case with 9V battery, handheld sensor, meter readout unit, and manual. The manual has good info but some things are missing. For instance, the meter display seems capable of displaying temperature in degrees C or F, but the Units key doesn't change that and the manual gives no other indication of how to change it. I can do the conversion if needed, but it would be nice to have the direct readout.Overall, it's nicely made, it works, and it did what I needed at a reasonable price.