KMC Smart Tap 2-Pack, 4-Outlet Smart Plug WiFi Outlet Wall Tap, Energy Monitoring, Works with Alexa and Google Home, Remote Control Your Devices from Anywhere, No Hub Required, ETL Certified, White
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ML
> 3 dayOverall this is a decent product. Setup was easy and the remote function works well. unfortunately it has a low amperage/capacity. I currently have a keurig coffee machine, an electric kettle and a Nespresso machine plugged in the unit. I con only run one at a time. if I turn on 2 units or more, the device will disconnect and shut off the power (like a surge protector).
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J B
> 3 dayI ordered the 2-pack of the Smart multi-tap outlets, and just plugged the first one in this morning. The very first thing that I did was download a bunch of Smart Device apps, most of which were mentioned in different reviews here. 1. The KMC Smart App has a low 3-Star rating, but thats what I used to connect to the device. The instructions in the app kind of suck because you have to fail at your first attempt before it tells you that another option for attempting to pair the device is to turn on, wait 10 seconds, turn off, turn on hold the button until the light blinks fast, and then you can pair with the app. Its something like that, but dont quote me. lol 2. For giggles I tried the Smart Life app that someone in a review recommended... AND... it looks almost identical to the KMC Smart app. I wouldnt be surprised if there used to be a different KMC Smart app that earned the 3-Star rating, and the app I downloaded is now simply a customized for KMC version of Smart Life. 3. Someone complained about network security because you have to share the WiFi password with the app, but you HAVE TO do that so the app can send the password to the device. The device uses WiFi as the interface if you want to access the settings, so it needs a password. If youre concerned about security, which I am, I turned on the Guest WiFi network with access to my home network disabled, but it still has Internet access if I use any cloud services down the road. 4. Some people claim that all switchable plugs turn on and off together as one unit, which is why I state that the device is buggy. It seems to be a problem in the firmware of the device. Once I got the app connected to the device, which was annoying, I used the app to turn off the second plug. It went from green to black, and then I lost my connection because it also turned off the third plug, which was powering my router. The first plug stayed green, and never turned off, so Plug-1 is independent, and Plug-2+3 may be tied together. If the problem is that the device or the firmware, then its either the app or user error. Its probably user error in my case, but if not, then the issue may be random, so just be prepared if it is. 5. My main reason for buying this Smart Plug was to monitor the electricity usage of my home entertainment system, so take the following with a grain of salt. Anyone who has ever taken a physics or electrical engineering class should know that the measurement for power in Watts is the total after multiplying Current in Amperes to Voltage, AC or DC, doesnt matter. The app is telling me that the current draw on the 3 switchable plugs, or maybe going into the device itself from the AC outlet, is 2200 milliAmps (2.2 Amps). It also shows that the voltage varies from 119.4 to 120.4 Volts AC, and the voltage seems to be fairly accurate since the power transformer is maybe 50 feet away from my home. However, and this makes no sense to me, but the app states that the Power being consumed is 189.1 Watts. Dumb it down, and 2 times 120 doesnt equal 189, so Im confused. Considering that the majority of AC Voltage devices designed and manufactured in China use an 85 VAC to 140 VAC range in their designs, which makes sense from an engineering standpoint, I cant help but wonder if some programmer didnt set 85 as a static value when writing the code to do the power calculation. Divide 189 by 120, and you dont get 2.2, so I have no idea where the device is getting its numbers and measurements from, but if the Power calculation is wrong, then obviously the KWh measurement wont be right either. Again, I simply want to monitor the power consumption of my home entertainment system, so I took off a star because I cant find any documentation to explain why Power doesnt equal Current times Voltage. Im also using two power strips in Switchable Plug 1 and Switchable Plug 3 because the plug spacing isnt sufficiently wide enough for typical 3-prong power cord male plug ends, so having Switchable Plugs 2+3 tied together is a bit irritating, but I didnt deduct any stars since I knew from reading the reviews to expect it. Otherwise, if I can get a few years of use out of the Smart Plugs, I think they are a good value, even with all their quirks. lol
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N Wills
> 3 dayThese come out of the wall really easy. I use both in places they arent disturbed, and just the weight of three 2 prong plugs slowly pulls one away from the wall. I have to push it back in once a week or so. Setup was easy. It works reliably. I have another brand plug that loses the network connection often, these do not.
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Brian ADR
> 3 dayI bought two of these back in 2019 and theyre some of my favorite pieces of tech for around the house. I love that they give you stats and the routines are super easy to set up. In addition, if you use Google Home, you can add these there as well and include them on your routines. Ive had no issue naming each individual port and controlling them by voice through Google Assistant. Ill say that again... I have had zero issue naming each individual port on top and controlling the on/off state via voice through Google Assistant. For the money these really cant be beat.
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Rayven
> 3 dayThey work well so far and were a good deal, however they both came scratched up as others have said. Also, the plug is on the bottom (not the top like in their photo).
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linux-works
Greater than one weekif you have linux around and want to flash this with better firmware, search on tasmota and tuya-convert. worst case, you open this unit and connect an ftdi serial cable and flash tasmota yourself, but doing the OTA trick sure is cool and almost fun ;) once you get open firmware on it, its WAY better. I have many of these at home and they all run the same firmware and can be remotely controlled with simple curl commands, fully scriptable, no need for gui or phone-home-china stuff. dump the factory firmware and never look back. these have the extra feature of power-mgmt (you can read voltage and current and power, for the whole unit, not on a per-port basis, sadly). see the config screen image for what the pin mapping is, for this module. each tuya module by each vendor is wired differently; so you have to search the model to know what each pin on the ESP chip does. I did that work for you, so just use this and be happy ;) again, its going to be a bit of effort to learn and read all you need to, to flash tasmota. to get this unit into program mode, you power it up then quickly hit the single power button and hold it for a long time until it flashes differently. I think it took over 10 or 20 seconds. keep pressing until it starts to blink. THEN run the tuya convert util on your linux laptop or rasp pi, DO FOLLOW THE INSTRUCTIONS and DO use your phone to connect to the ssid that the linux util says to. just connect to it like its a wifi portal and keep your phone on that. THEN proceed to flash tasmota from linux to the kmc4 unit. its complicated but worth it and once you do one, youll do the next one a lot faster and easier.
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Christopher Siegel
> 3 dayProduct continues to auto shut off after about 10 15 min of being on. The company forced an update onto it and it now has lost the ability to control 3 separate plus it has now became one plug. The reason i bought this unit is to control several items on one plug. Also they told me that it needs a strong wifi signal to work. One is literally 1 foot from the router and losses wifi signal. The other is also in the same room about 5 feet away. If you enjoy you lights acting there is a ghost in your house feel free to purchase this productother wise i would search elsewhere.
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Sarah P. Baldwin
> 3 dayModel 30608 was shipped to me in the end of November 2020. Used tuya-convert to upgrade firmware to the open-source Tasmota firmware without any issues. I used the following template without issue: {NAME:KMC 4 Outlet,GPIO:[0,56,0,0,133,132,0,0,130,22,23,21,17],FLAG:0,BASE:36} Now I can program the outlet to turn on and then off again after fifteen minutes -- perfect for when I forget to turn off the coffee maker.
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Prof. Carlo Hessel DVM
Greater than one weekTook a little while to get them set up with google home, (didn’t include any good directions) but once it was set up, they’ve worked great. Fast response, stay connected well. It’s nice to get control of three devices from a single smart outlet.
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jayy
> 3 dayI just received a 2-pack of this KMC Smart Plug yesterday. The setup was a breeze. One of the units I received was Dead On Arrival. It had a malfunctioning socket, but I will be getting a replacement after a quick 5 minute chat with Amazon. Here are the pros and cons of the units after my one day use. I will update this review when theres anything Id like to add. Pros: 1. Easy and polished Android app called Smart Life by Tuya Inc. making it super easy to setup.(I havent tested the iOS app) I found it easier to setup than setting up the Amazon Echo via the Alexa app. 2. Cheap. It will pay for itself after just a few months. For example, I have a smart vacuum that drains 13 watts/hour 24/7. It would save me $20 in 6 months if I program it to only charge the vacuum one day a week. Ill be playing with this functionality with my other vampire power devices in the house such as my WIFI-enabled laser printer(idles at 9 watts/hour), analog oven(idles at 15 watt/hour!!), XBox, smart TVs, etc. 3. Gives you easy control to areas that are hard to access. Now I can just pull out my phone to control via the app or say Alexa, turn on/off my TV backdrop light instead of crawling to the back of my TV. 4. Alexa, Google, IFTTT integration is so dang cool! Cons: 1. The instructions manual DESPERATELY needs an update. It tells you to should download a banned app called KMC Smart. It was banned because it had services that ran in the background of your phone that shouldnt have been running. The one you should download is called Smart Life. The seller really needs to update the manuals as this is a very critical step. 2. Sockets are too close to each other. 2mm more padding space would be more ideal for most plugs. 3. Sockets stay off after power outage. The statement on the product description is not true: After a power outage, outlets will retain their most recent setting to save energy. I hope the smart plug will get a firmware update to address this issue.