Customer Reviews

"Watt's Up" RC Watt Meter & Power Analyzer WU100 Version 2 --- SALE!

5 star:		(17)
4 star:		(0)
3 star:		(0)
2 star:		(0)
1 star:		(0)

 

 

This item is marketed primarily by and in support of RC enthusiasts (toy makers and users). It, however, is not a toy and could cause harm if misused. I purchased the Watt's Up meter to monitor large batteries powering telescopes, associated computers, heaters and lights. This is in an outdoor environment subject to cold and moisture. Follow the instructions and be prepared to be delighted. Perhaps one of the few items on the market which delivers exactly what it is designed to do. Because my application is at night, I wish it had a backlight, but that's not a major problem. My astronomy gear is expensive, portable and uses DC power. The Watt's Up allows me to see what my electronics are really doing in the field, compared to what the manufactors say they are suppose to do. That means early warning for batteries, heaters, internal components (computers, motors and chip sets) and in the environment they are used. The Watt's up is well made, weather resistant, and compact. During a session, it even records relavant data and continually updates itself. It won't pour your coffee, but it will watch your DC systems better than you could without it. A very, very good buy.

I purchased this meter after learning about it on a few of the solar power forums on the net. I am using it to monitor a small home solar power system. So far I am very pleased. I especially like the fact that it will measure amps and watts over time, along with minimum voltage and peak currents. I would say it is indispensable for maintaining or tuning a small solar set up. I have only been using it for a few days but if it lasts I am very pleased. The 60 amp limit is a real plus.

This device is being used as an eBike power monitor. It's very easy to install and works exactly as advertised. Shows instantaneous Volts, Amps,and Watts. After a ride, it shows the total energy used in WattHours, and the peak current and power used during the ride, as well as the minimum battery voltage. Extremely useful for monitoring battery consumption and condition. It will not quantitatively display regenerated current but it does show the rise in battery voltage during regenerative braking. Excellent product; excellent price.

I was very concerned seeing that it had 14AWG wire for up to 100A peak. But I tested it at about 53A for several hours and I had no problem with the wire size. I did find that when the unit warmed up the LCD screen was basically unreadable... I directed a small fan on the unit (actually it was the exhaust fan of the invereter it's attached to) and that cooled the unit and made the LCD readable again. Fantastic device! Highly recommended. FYI, this one has limited Amp-Hour limit but much higher Watt-Hour limit. Check out their website for why they believe Watt-Hour is better than Amp-Hour. [...]

Very good device. Due to the form however is not easy to mount. I use it in my boat to measure the suncells.

UPDATE:
Some time the display just blacked out.
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This item is definitely not a toy. It works very very well for serious measurement. I bought to monitor the charge, voltage and power while
my battery is being charged by a solar pannel. It gives accurate measurement -- I am very happy. I love the fact that this thing is tiny and
very light weight. I was able to mount it on the handle bar of my bike and monitor the electrical parameters of my bike dynamo.

Make sure to download the manual from on-line and if you plan to measure voltage below 4 voltage, you will need a 9V battery with Snap connector
from Radio Shack and a Servo plug from a toy store. Just tell they you need a servo plug that goes into the three pins.

I use it not for RC toys, but for an industrial controller, battery powered. It works exactly like the advertising says, gives very good feedback. Easy to install. You should download the user manual as the unit ships with almost no documentation.

It does have one restriction, it only works one way. So you can use to to monitor battery load, which I do, or you can monitor battery charge. But not both at the same time. If you charge the battery while the gizmo is connected to monitor load, it doesn't hurt anything. The manual says this and I can confirm it.

So ... easy to use and gives good results. 5 stars.

This is just the thing to measure your power draw and make sure you aren't going to blow out any parts (or strain your battery) as you experiment with different motors and propellers.

I bought this because of the reviews I had read on Amazon. It has turned out to be one of the best investment I've made in my off-grid solar/system. With it I could determine the total amount of watt hours I was getting from my solar panels on sunny and cloudy days. As a result I determined that I needed to purchase more solar panels for my total electrical needs. It is an invaluable tool for the small scale off grid person. One can also rig it into any appliance to determine the amount of energy that unit is using. I put 4 inexpensive rubber shielded alligator clips on the unit as this allows for many different applications. Great little gadget!

This is indespensible for use in the electric RC Hobby. Not sure why I had to rate this as a "Toy". It's more a precision instrument.