KAUF Power Monitoring Smart Plug with ESPHome, Compatible with Tasmota, Made for Home Assistant
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Availability:
In Stock.
Arrives
Monday, Mar 9
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Number of Items: 1
Features
- Power monitoring Smart Plug with 15 amp relay.
- Runs ESPHome out of the box for 100% local control without flashing, soldering, editing YAML, or hoping tuya-convert works.
- Connects natively to Home Assistant without going through a cloud connection or requiring a third-party App to setup or connect the plug. ESPHome HTTP API allows use without Home Assistant.
- Reprogrammable with any ESP8266 compatible firmware. Easily integrates into any existing MQTT system. Compatible with Tasmota.
- Firmware version 1.91 adds independent configuration for use of red and blue LEDs, as well as allowing for dimming of both.
- Firmware version 2.02 improves power monitoring accuracy.
Description
Same KAUF firmware you know and love with new and improved hardware. This classic home automation device can be used to switch on and off a device that plugs into a standard U.S. 120-volt wall outlet. Common usages include lamps, box fans, and Christmas lights. Power monitoring lets you know how much power the plugged in device is using, as well as whether the plugged in device is running and when it finishes. A binary sensor is automatically created that lets you know if the plugged in device is running using a configurable wattage threshold. The recommended Tasmota template is {"NAME":"Kauf Plug","GPIO":[0,3 20,0,32,2720,2656,0,0,,0,0,0],"FLAG":0,"BASE":18}. IMPORTANT NOTE: Do not have anything plugged into the KAUF Smart Plug when Tasmota is first flashed.
Brand: KAUF
Color: White
Voltage: 120 Volts
Material: Copper
Connector Type: Plug-in
Number Of Poles: 1
No. of wires: 3
Plug Format: Type A
Specification Met: NEMA
Amperage: 15 Amps
Manufacturer: Kaufman Home Automation
Smart Home Compatibility: Smart Home Compatible
Package Dimensions: 3.23 x 2.09 x 1.65 inches
Item Weight: 2.89 ounces
Item model number: PLF12
Date First Available: October 20, 2022
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Mar 9
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Number of Items: 1
Very happy with this product - amazing functionality with Home Assistant for $13! Easy to follow instructions for setup, love the web-page for raw status info, even without any integrations set up. Provides fantastic functionality, future upgradability, ability to flash new firmware easi.y.
Reviewed in the United States on February 4, 2026 by David McGlynn
Number of Items: 1
This is the coolest device I've purchased in years. On the surface it's just a power monitoring smart plug compatible with Home Assistant, natively running ESPHome. For normal Home Assistant usage, its wifi will be more reliable than other plugs due to having no internet dependencies. The excellent documentation makes this plug useful for so much more than just Home Assistant. Inside there is a generic ESP8266 microcontroller, capable of being reprogrammed to run anything you want. There are no checks on uploaded firmware, so you have complete freedom to make your own. If you do plan to make your own custom firmware be sure that it supports wireless OTA updates, as there is no wired serial port available for recovery if you accidentally flash firmware without OTA support. With this functionality there's no need to use ESPHome, Tasmota, or even Home Assistant at all! I now run these to automatically reboot my modem after a number of failed pings, with no Home Assistant instance required. In the past I've used discreet relays, ESP8266 microcontrollers, and power supplies to achieve the same functionality. Using this plug is smaller, safer, and overall a much more professional solution. For less than $15 I've never seen this level of DIY support in any home automation product.
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Reviewed in the United States on January 10, 2026 by Mark
Number of Items: 1
As advertised, this thing works in Home Assistant natively. It broadcasts its own SSID when you first plug it in, you just connect to it on your phone. My phone then instantly took me to the device's setup page, asking for my real network's WiFi info so it can connect. After that, it restarts itself, connects, and then Home Assistant instantly sees it for setup. Even after setup in Home Assistant, it still has a very neat and useful built-in user interface available at its local IP address, accessed through a web browser (see screenshot). So far it has been great at monitoring power usage and recording data in Home Assistant for analysis and historical purposes (see screenshot). It also features anything you'd expect a smart plug to do: remote on/off, timers, triggers, etc.
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Reviewed in the United States on December 15, 2024 by Just Gaming Just Gaming
Number of Items: 1
I'm running a DIY solar battery backup system for a couple of circuits in my home. I need inexpensive power outlet monitor and control that I can use over LAN with my own software which uses very simple http communication. I need something that can operate when power and internet are out. Many similar devices out there use phone apps and cloud services, so those require internet and are non-starters. The KAUF is similar to Shelly products. Both offer control and monitoring over LAN from a web browser. I was unclear at first on what syntax to use with the KAUF, but I contacted customer support by email and Brian was quick to respond with just what I needed to know. The KAUF does what I need at a very reasonably price.
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Reviewed in the United States on October 7, 2025 by Techgineer
Number of Items: 1
These are great devices! They work as advertised. They stay connected to wifi with no issues. Home Assistant recognizes them immediately. They just work. One caveat: the initial wifi config can be difficult. All of my windows laptops and my iPhone have problems connecting to the device's initial hotspot. Oddly, my ancient Kindle tablet connects with no issues.
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Reviewed in the United States on October 23, 2024 by poodad
Number of Items: 1
Working as expected. Both app and web works flawlessly. Haven't faced any issues with connectivity, connecting with wifi was easy. Controlling from both the web and the app was easy. Only consumes around 3 watts. The on/off switch works instantly. Power monitoring also works perfectly with no issues.
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Reviewed in the United States on March 9, 2025 by Kaizar Tariq Inan
Number of Items: 1
I basically copied Kyles review sit some more info I tried three of these "smart" plugs and they all worked the same. Both of which seem to suffer from some sort of intermittent crash which renders this whole thing unusable. The setup process is supposed to be 1) plug in, 2) connect to fallback wifi network, 3) update local wifi credentials, and 4) adopt. I was able to get to step 2 about two or three times but was being kicked off the wifi network constantly due to the device seemingly rebooting. I was able to get the wifi credentials in there one time, then it rebooted and seemed to work for a minute, I never saw it connected to my WI FI network, even though I had disabled the 5 ghz channels. I really don't know how you mess this up. Like the thing obviously is powering off an on. Asking Chatgpt what to do, I went through a complicated diagnostic process, and basically it looks like they were flashed with the wrong software, and I can't fix that without a soldering iron. I con't know what a good replacement is. I am very disappointed.
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Reviewed in the United States on December 18, 2025 by Gary Pelton
Number of Items: 1
I purchased a Kauf PLF12 to automate the daily on/off cycle of my home's outdoor lighting. I now have that lighting coming on a few minutes after sunset each day and going off 3 hours later or 10pm, whichever comes first. The PLF12 was extremely easy to setup and the native ESPHome web page and API that it exposes is almost too easy to use. For an outdoor installation like mine, you'll want to purchase an Intermatic WP1020C weather protecting two-gang receptacle box and a very short flat plug extension cord (1-ft or less). Together, those three items worked perfectly to make a nice installation. I am not worried about the connection between the short extension cord and my low voltage lighting transformer, but if I find that it needs weather protection I will add a small water-resistant cord connector protector. See the pictures to see my setup with the Intermatic WP1020C and a 1-ft flat plug extension cord. Using the Intermatic cover, the PLF12 fits perfect in the top outlet slot but will not quite fit into the bottom slot. That was fine for my situation, and a little trimming of the plastic bezel would allow the PLF12 to fit in the bottom outlet slot.
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Reviewed in the United States on March 24, 2025 by Lester Hightower Lester Hightower