good, portable metrenome
936888
I use it for school and it fits perfect in the little pocket inside my bag.  The ear piece is great also.  You can record and no one can hear the beat.
2571438
I have an embarrassing number of multi-meters and this may be my favorite one.  The two features that set this one apart are the uF measuring option for testing capacitance and the Non-Contact Voltage feature that works surprisingly well.  I like the relatively small size and the build quality is very good.  The reason for the one star subtraction is for the probes.  They are heavy duty and include removable collars to extend the probes.  However, the wire is somewhat inflexible will frustrate you when trying to untangle the probes.  A nice quality set of probes would have made this a 5-star product.  And, to make it a 6-star product, an elastic wrist strap that could be velcro'd to the unit to free up a hand would have been icing on the cake.

About me: I'm not an electrician so my needs are relatively basic as a handy guy/homeowner.  The values on this meter, like all meters, slightly vary from one to another.  Which one is accurate?  Hard to know unless you have some very expensive calibrated equipment that a pro electrician would have.  But, for the average homeowner, the accuracy and functionality of this device is hard to beat at $33.
3509408
I've been doing a lot of testing with some USB chargers recently and purchased this item as it's a nice tidy unit compared to my current test setup of cut open and spliced USB cables and Fluke multimeter.  I find that it works well for a quick and dirty field test, and is small enough to carry with me when I travel and need to nerd out on the road.  It's definitely not as accurate as my bench-top setup, but I don't think that could be expected from an $11 item like this.

What I like:
It's cheap, small, simple, and basically functions as you would expect.  The screen is bright and easy to read.  You plug it in and it starts displaying voltage and current alternatively (It displays the voltage with a "v" for about 10 seconds and then the current with an "A" for about 10 seconds, then repeats).  In my testing I found that current readings were off by less than 4% which I find really good for what this is.

Things to know:
Since the unit is all one piece, you might end up with a situation where the display is pointing in a direction that's not ideal (reading it upside down, or pointed in the wrong direction).  It's also a little larger than a normal USB port so I've had a few occasions where it would not fit side-by-side with another USB plug.  For testing and making comparisons, this has not been an issue for me, but you might want to check if you have a specific application where you want to use it in a specific way.

What could be better:
Accuracy could be a better on voltage (It's actually not bad considering the cost of $11).  I found voltage readings were often off by up to 8% without any load, and up to 13% with load.  I'm using good cables during this test that independently show about 1% voltage drop under load, but that still put's this device off by more than 10% which could be better.

Overall it's a great item for the price and my use (I would rather accept the drawbacks in the things to know section for the compact single unit).  I've already bought a second one to keep in my travel bag.
2681419
Bought this after reading some somewhat mixed reviews, but now that I have it, I'm glad I made the purchase. The Humiditrak is very compact and the included clip makes it easy to clip onto the accessory panel on my hard case. I compared the humidity readings to my digital room hygrometer, and it seems like the other reviewers were correct that this does read humidity and temperature a bit high. That's no problem for me though, since it's pretty easy to take that into account when checking the readings. It would be nice if they offered a calibration setting so you could set it up out of the box. I have yet to utilize the accelerometer feature since I don't travel much, but I'm happy that it's included if I ever need it. All in all, I would highly recommend this to anyone who owns a nice acoustic instrument and lives in an area where temperature and humidity can vary widely from season to season. This winter has already cost me a couple of trips to my local luthier, but I think now that I have a better way of monitoring my instrument I should have nothing to worry about.
4027085
I purchased a Magellan 2200T two weeks ago. Overall, I am happy with this GPS unit and I think it provides good value for the relatively low cost (compared to other units in its class).

The reason I purchased this unit (instead of the Tom Tom One and some of the Garmin units) is that it DOES include features that I valued like:

- Text to speech, the unit says the name of the street / road you need to take

- SIRF III chipset (faster satellite lock)

- Extended battery life (don't need to be constantly charging the unit)

This unit also excludes some "features" that others charge for that I don't feel add value to a GPS unit in this price range, specifically Bluetooth capabilities. I own a BT phone and headset, and can't imagine why I'd want to drag a GPS unit into the mix.

The NAVTEQ maps are as accurate as any GPS unit, and the POI set is adequate (I think it may contain slightly fewer points of interest vs. other units).

Again, overall I'm happy with the features, quality, and functionality. My only "wishes" are for a more robust POI database and a better online documentation from Magellan.
2886760
I just bought this tuner to use with my new mandolin, and reviewers here (and a family member) steered me right. The CA-30 and CA-40 tuners are good affordable tuners to support those learning to tune their acoustic instrument.

On the plus side, the tuner is sized to fit in most instrument cases' equipment pocket, which keeps it safe and handy. Don't hesitate on this if the price is still discounted.

I took a star off for a rather brief manual, and lack of FAQs and such on the Korg site. Though the CA-40 has a built-in stand, it has no backlight, which I would've preferred for dark stages where it could be used with an optional microphone.

NOTE: This item has been tagged as a metronome, it DOES NOT feature metronome functions.
1469782
What is great about this metronome is that it is compact, light, and has awesome features.  I've had it for about a year now, haven't had any problems with it.  The flip out stand is functional and some other have stated that their battery compartment comes off when they try to use the flip stand.  I haven't had any issues in this area and I am careful when pulling out the stand.

It is plenty loud for me and I usually have it on the lowest volume possible (I practice in a quiet environment) when on my electric guitar or banjo.  My only gripe about this metronome is that I wish the touch screen was a little more responsive.  I'd like to see Snark come up with this metronome in the same form factor with a built in tuner!
2314004
This is a great handy tool with both imperial and metric measurements. The metal is bendable and it would be better if it was more sturdy.
2001170
I bought this metronome to be used for running cadence training. I set mine to single beat at 90 bpm, at 2/3 volume. It does exactly what I want from it. The clip makes it easy to attach to my Garmin Forerunner watch. Battery life is a little shorter than I expected. For an average of 90 minutes use per week, the battery lasts for 5 weeks (450 minutes total).
704349
This is a very practical little device, easy to use:  just plug into an outlet and a Boss DB-90 Metronome. It's that simple.
1500183
I like this meter.  This is my second one.  Even though I have to pull it up fast to read it from the soil I have always found the readings to be stable and reproducible.  I always lose the instructions though so for me and others am adding a pic for future reference.
608492
I'm very picky about metronomes, and was skeptical about this inexpensive device. But the feature set was what I was looking for. It arrived today and I am pleasantly surprised!

PROS: It is loud (almost as loud as the Korg KDM-2), a volume dial controls the speaker (or headphones if connected), the sounds are decent, including a useful voice count, and a colored led (red for beat one, green for all other beats), runs on 3 AAA cells, pretty rugged build.

CONS: one flaw is that each time you start the metronome, the first two beats are closer together than they should be (i.e., the very first click is delayed as it starts). The box has a list of rhythmic patterns that includes several that are not available on the unit. Also, the box said that an earphone was included, but this was not the case. Also, the enclosed instructions promise coupons that are not accessible.

THE SOUNDS: the first tone is the voice-count, which is fine. The second tone shows a temple block icon, it is a woodblock on one, and a tight click that sounds almost like a short closed high-hat, very useable. The third tone shows a snare drum & sticks icon, it is a very short high square wave tone, a higher pitch for one, and a lower pitch for all other beats. The fourth tone shows a mechanical metronome icon. Beat one is a bell (like an old-timey cash register) which is the longest (most in-your-face) sound on the device, all other beats sound like a mechanical metronome click. If you hate the bell, simply set the beat to "0" (zero). This will give you no "beat one" tone.

BEAT BUTTON: means beats per measure. Set to 0, there is no special downbeat (beat one) sound. Set to 1, every click is the downbeat sound. 2-9 are also available.

VALUE BUTTON: means subdivision pattern. Options include plain quarter-notes, pairs of 8th-notes, 8th-note triplets,  four 16th notes (xxxx),  dotted-8th-16th (x--x), 8th & two 16ths (x-xx),  and two 16ths & one 8th (xxx-).

SUMMARY: More full-featured metronomes can be gotten as standalone devices or apps. However, smart phones are often not loud enough and loud standalone metronomes are often pretty pricey. This device fills the need for a metronome that does the basics, is loud, portable, and very affordable. The tempo glitch with the very first starting click is not ideal, but is forgivable at this price point. I'll be getting at least one more of these.
2909570
This Nuvi 50LM replaced a basic 205W, which was three years old.  The old one worked fine, but I bought this for the larger screen and lifetime map updates, assuming it would retain all the features of the 205W.  This was mostly true, but the 50LM dropped the calculator and world clock.  It also measures all distances over 10 miles only in whole miles, not tenths.  This may not be important to some, but makes it just a little less precise.  Also, the data base, which I updated when it arrived, does not know quite a few roads and other waypoints which have been around for some time.  Still, it is an excellent and very usable piece of technology, which is especially helpful when traveling away from home.
3058261
I've been using this metronome for a couple of weeks now, and it's been very helpful in tightening up my rhythm. It's a good-looking metronome, and though it's plastic with a veneer, it looks nice and functions well (wooden ones are generally more than twice the price, without the bell). I've tried many metronome apps on Android and iOS, as well as owned an electronic one, and nothing compares to using the real thing. For the price, quality and functionality, this hits the nail on the head in the mechanical metronome market.
1733499
I found this easy to read (the display) and easy to set up, reasonably priced, and it works.  It is flexible on how to use it since it senses steps in several planes of motion, just be careful to make sure it's secure and will not fall off a belt or out of a pocket, and set up your average stride length as accurately as you can.

I use it purely to count steps and distance, not sure the calories it displays is accurate at all or not, etc., and I don't need all that.
4097122
For the price this is hard to beat. Measurements are reproducible and seem fairly accurate when judged against some feeler gauges I bought here on Amazon. The battery that came inside the unit was completely dead, but apparently this happens often enough that the seller added a second battery to the box that worked fine. Battery type is CR2032 and common enough to find at most grocery stores, so no problem picking up future ones when needed. It has a decent heft and is sturdy enough to not flex. The delta-zero feature is also quite handy, as is the ability to rapidly flip between metric and real (ie: US) measurements. Remember - one nation has walked on the moon; everyone else uses metric. Think about it.  ;)

All in all, a win.
2420958
This decibel meter works well and seems to be accurate. It is powered by a 9v battery which is provided. It's not professional build quality but it serves its purpose. It has a simple on/off switch to turn the meter on and off. There is a button on the left side for fast/slow. You can have the meter read out fast which will change levels quickly depending on the sound you are measuring. If you want a more precise readout, you can change it to slow so it's easier to read as it doesn't fluctuate as quickly. The button on the right ise is to check the static minimum and maximum readings. When you power off the meter, this will reset to 0db.

The meter has a very convenient tripod mount for any cases in which you need to mount the meter somewhere. Perhaps maybe if you're measuring the decibels of a car's exhaust, you can screw it onto a very low tripod near the exhaust to get a more accurate readout as the meter will be in a static position.

I'm happy with this meter and it's working well for me. It's not something that I will be using very often, but it's a great addition to my toolbox for times when it will come in handy.

I received this product for free or at a significant discount for my honest and unbiased review. All my reviews are my own personal opinion and I have not been influenced by the manufacturer or any third party to leave positive or dishonest reviews.