Shelly Plus Plug US | WiFi & Bluetooth Operated Smart Plug with Power Measurement | Home Automation | iOS Android App | Alexa and Google Home Compatible | Monitor Appliances | Remote Control (4 Pack)

I purchased this device to measure the wattage consumption of my homelab. While I had an approximate idea of the overall power draw, I wanted to track peak usage and ensure the voltage remained stable "enough" for my equipment.This is an excellent "smart" alternative to a traditional Kill-a-Watt. It integrates seamlessly with Home Assistant and offers customizable settings for individual outlets. From what I can tell, it’s based on an ESP8266, and the firmware has received multiple updates—always a positive sign. The default Shelly App also retains a surprising amount of historical data, even if you choose not to link it to Home Assistant. Plus, it can be triggered and updated through Home Assistant, which adds a layer of flexibility.I appreciate how companies are embracing open-source principles—this device feels like a great example of that. It’s reliable, feature-rich, and easy to customize.TLDR:✅ Accurate wattage tracking with peak monitoring✅ Seamless Home Assistant integration✅ Regular firmware updates for the ESP8266-based device✅ Shelly App provides detailed historical data✅ Open-source-friendly design and customizationRecommendation: Perfect for DIYers and homelab enthusiasts looking for a smart, open-source power monitoring solution.

These are fantastic.Flawless web interface (starts off as its own AP, which can be disabled later after wifi access is established)Reliable LOCAL (wifi) Control ... Disable'able if you want to - I dont know why you would though.OPTIONAL Cloud ControlOptional Bluetooth controlOptional MQTT/RPC ControlWeb-based or Automatic firmware upgradesNTP time updatesWorks flawlessly with Home AssistantSomeone really thought this device through thoroughly.After setting up thousands of different IoT devices, I am very impressed.This is the gold standard of what IoT devices should be.

Easy to setup. Works great. Add to combiner app to earn cryptocurrency

I love this product. First heard about this from a Raspberry Pi internet monitoring setup where the author also monitored the power consumption of his satellite gear with a Shelly plug. I grabbed one and installed it on the pump for my 25,000 gal swimming pool. Pump pulls 989W consistently, well within Shelly's limits. I can now monitor the power consumption from a Pi and detect things like a burst hose or low water level based on feedback from the pump. I can also turn the pump on and off remotely which makes vacuuming by myself a breeze. I have bypassed the old mechanical time switch my dad mounted on the wall when I was a kid and now I schedule the pump operating hours in the Shelly app. I love this product and will be buying a few more! Very capable and has a whole slew of communication options including wifi, bluetooth, websocket. and MQTT. Impressive device in a tiny little package!

Bought this because you can use and API to manage it. I was going to use this to reboot my home internet router with a python application if there is a loss of connectivity. When the device is on the wifi AND there is an available route to the internet, it works without issue and I can control it no problem. If the device is on wifi AND the internet is not available, the device disables it's communication on the wifi network, so you can't grammatically communicate with it at all. can't even ping it. When the internet connection on the wifi network is restored and there is a route to the public internet, then you can interface with it again. I opened a case with their support and it took them forever to respond, when they did respond they told me it's normal for device on the wifi network to not be reachable when there is no internet. lol, no Shelly support, all devices on the wifi network will still be able to communicate with each other, they just wont be able to access the internet. The only device that did not work and could not communicate without WAN availability was the smart plug. It's obvious that their device want to talk to the mothership and is disabling features/services if it can't, which is silly, a bug, and ridiculous that they can't even understand basic troubleshooting. I found lots of other people complaining of the same kinds of issues on the net.

It's a great product. Easy to use. Measures the wattage. Used it to turn on my air conditioner, my Google home assistant.