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4-Pack KMC Slim Low-Profile Wi-Fi Smart Plug Expired

$10.25
$20.49
+36 Deal Score
37,418 Views
KT-KMC via Amazon has 4-Pack KMC Slim Low-Profile Wi-Fi Smart Plug (White, kt-154) on sale for $10.24. Shipping is free w/ Prime or on $35+ orders.

Thanks to Community Member Wah_Jai for sharing this deal.

Product Info:
  • This smart plug 4-pack covers all your bases to start remote controlling lights, devices and setting scenes across your home
  • The free KMC Smart app allows you to automate your connected devices based on conditions like time, sunrise/sunset, weather, device status and more
  • Compatible with Alexa & Google Assistant to voice control your smart plugs by saying "Alexa" or "Hey Google"
  • Low-profile design doesn't block the other outlet
  • UL/ETL Certified. Electrical Ratings: 15A, 125V, 60Hz, 1875W
  • KMC smart plugs come with US-based technical support and a lifetime warranty
Good Deal?

Original Post

Written by
Edited March 23, 2024 at 01:43 PM by
4 Pack of these KMC smart plugs. Lowest price according to CCC.

https://www.amazon.com/dp/B086MHKPXD
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Deal
Score
+36
37,418 Views
$10.25
$20.49
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Last Edited by jimmytx | Staff March 23, 2024 at 07:33 PM
  • This offer is $2.25 less (18% savings) than our front page deal from November 2023 which earned over 30 thumbs up.

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Featured Comments

1. Only buy plugs that are not cloud dependent and have an offline mode.
2. Buy plugs and "things" that can be flashed to Tasmota. (these don't appear to be)
3. Set DHCP reservations for specific devices with their MAC to IP mapping.
4. Place them on a separate SSID on a separate VLAN that has extremely limited connectivity to other internal networks and the Internet.
5. Control DNS for the devices and return NXDOMAIN for the many obscure, unnecessary, and questionable domains they attempt to connect to.
6. Don't use their "app" to interact with them - use a home automation platform or similar to manage them, and interact with them through the automation app (or use your own custom API calls if so inclined) - see #1.

They take more work initially, but once the initial configuration is complete, I don't worry too much about them. The most challenging part anymore is finding ones that can be easily flashed to Tasmota because many of them switched to a different chip that's not as friendly to convert. However, it sounds like some progress is being made with those through alternative firmwares such as OpenBeken.

Not that most people are doing these things. LMAO
You aren't understanding. By connecting any smart device to your WiFi network, the creator of that smart device can scan or attempt to hack ANY device on your network. That includes your computer, your phone, your router, your NAS, your cameras. And worse, if these devices have security vulnerabilities, then any average hacker can also do the same exact thing to your network.That's why it's so important not to let rogue devices into your home.

In other news, I have had success flashing some KMC devices (not this one) to tasmota/openbk.
Funny you mentioned that. There was a story where a hacker seized control of a casino, via a smart thermostat on a fish tank. https://thehackernews.com/2018/04...meter.html

GorillaBread is right. These types of gadgets are a hole that gives access to the rest of your network. Sort of like keeping your house key under the mat. Sure you only want the cleaning lady to use it but when someone else finds it...

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Joined Jun 2012
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> bubble2 74 Posts
21 Reputation
hashbang
03-26-2024 at 11:15 AM.
03-26-2024 at 11:15 AM.
Quote from starfoxinstinct :
You aren't understanding. By connecting any smart device to your WiFi network, the creator of that smart device can scan or attempt to hack ANY device on your network. That includes your computer, your phone, your router, your NAS, your cameras. And worse, if these devices have security vulnerabilities, then any average hacker can also do the same exact thing to your network.That's why it's so important not to let rogue devices into your home.

In other news, I have had success flashing some KMC devices (not this one) to tasmota/openbk.
Do you know what chip these use? Have you tried tuya-cloudcutter? (which leverages more recent exploits) I bought some, but my goal will be to reflash. I'm ok with cracking the case open to flash with serial.
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Joined May 2004
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> bubble2 3,171 Posts
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starfoxinstinct
03-26-2024 at 11:25 AM.
03-26-2024 at 11:25 AM.
Quote from hashbang :
Do you know what chip these use? Have you tried tuya-cloudcutter? (which leverages more recent exploits) I bought some, but my goal will be to reflash. I'm ok with cracking the case open to flash with serial.

Mine was a Beken chip, I think? This isn't my device either but seems like a decent reference: https://www.elektroda.com/rtvforu...60117.html

Edit: this is my actual device that I flashed https://a.co/d/gegYeUt one reviewer says it was an ESP chip which isn't what I had. You can read my journey with this device here:

https://slickdeals.net/share/iphone_app/fp/852764
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Last edited by starfoxinstinct March 26, 2024 at 11:31 AM.
Joined Jun 2012
L2: Beginner
> bubble2 74 Posts
21 Reputation
hashbang
03-26-2024 at 12:27 PM.
03-26-2024 at 12:27 PM.
Quote from starfoxinstinct :
Mine was a Beken chip, I think? This isn't my device either but seems like a decent reference: https://www.elektroda.com/rtvforu...60117.html

Edit: this is my actual device that I flashed https://a.co/d/gegYeUt one reviewer says it was an ESP chip which isn't what I had. You can read my journey with this device here:

https://slickdeals.net/share/iphone_app/fp/852764
Thanks for the info. I'll try cordcutter first, and if that doesn't work I should be able to crack it open and flash with serial.
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Joined Nov 2013
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> bubble2 108 Posts
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landisv
03-27-2024 at 05:51 AM.
03-27-2024 at 05:51 AM.
Quote from InstanceNoodle :
I am looking for a power monitor for home assistant. Do you have any recommendations?

I was looking into it, but it seems like one brand work, then they did something, and it doesn't work anymore. I think it was tp link.
If you're talking power monitoring plugs, I have a number of the old TP-Link energy monitoring ones that I have set up for offline that work really well. I think they are the KP115 and HS105 models, but not certain the 105s actually do the energy monitoring so you might double check. I also have some Switchbot plugs that I have converted to Tasmota, but I haven't used those very extensively - they should work fine, though. I think the thing with the TP-Links was that they needed to be an older firmware because they disabled or crippled offline mode on some of the newer firmwares and you couldn't go back to older ones that worked; very possible I bought all of mine before the firmware change.

If you're talking whole house energy monitoring, I use ZWave for that. I'm cheap, so I have an ancient Aeotec unit that works OK, but I haven't really dug into getting that configured well, so I primarily focus on high-level usage.
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Last edited by landisv March 27, 2024 at 05:54 AM.
Joined Sep 2011
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> bubble2 52 Posts
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fudfudfud
03-28-2024 at 03:51 PM.
03-28-2024 at 03:51 PM.
Quote from hashbang :
Thanks for the info. I'll try cordcutter first, and if that doesn't work I should be able to crack it open and flash with serial.
I was able to flash Tuya-Cloudcutter and OpenBeken firmware onto these KMC 30154 smart plugs. Used a Pi 3B+. I've also included the json pinout to import into OpenBeken https://pastebin.com/CikShrtq
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Joined Jun 2012
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> bubble2 74 Posts
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hashbang
03-29-2024 at 03:53 PM.
03-29-2024 at 03:53 PM.
Quote from fudfudfud :
I was able to flash Tuya-Cloudcutter and OpenBeken firmware onto these KMC 30154 smart plugs. Used a Pi 3B+. I've also included the json pinout to import into OpenBeken https://pastebin.com/CikShrtq
Which device/profile did you use?
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Joined Nov 2013
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> bubble2 2,848 Posts
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Col.TED
03-31-2024 at 03:16 PM.
03-31-2024 at 03:16 PM.
Just got the dual outlets today. Setup was a breeze with Smart Life App.
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Joined Sep 2011
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> bubble2 52 Posts
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fudfudfud
03-31-2024 at 08:08 PM.
03-31-2024 at 08:08 PM.
Quote from hashbang :
Which device/profile did you use?
I searched for manufacturer > KMC > 30153. After flashing, configured it with the correct PIN settings.
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