Xiaomi Power Monitor: What is this device and how does it save energy?

If you’re actively using the Xiaomi ecosystem or just planning to get a smart home, you’ve probably come across the term Power Monitor.This compact device from the Chinese brand promises not only to control electricity consumption, but also to integrate into the existing infrastructure of smart gadgets. However, many users still do not understand how this device works, what tasks it solves and whether it is worth buying.

In this article, we will take a closer look at what Xiaomi Power Monitor is, how it interacts with other ecosystem devices (such as the Mi Home or Home Assistant), what models are on the market in 2026, and how to connect it properly. We will focus on practical application scenarios, from basic power monitoring to automatic control of household appliances through Mi Home Automation. If you are looking for a way to optimize your electricity costs or just like smart gadgets, this is the material for you.

What is Xiaomi Power Monitor and how does it work?

Power Monitor (or Mi Power Monitoring Plug) is a smart monitor from Xiaomi that allows you to measure the power consumption of connected devices in real time. Unlike conventional smart outlets, this device not only turns on / off power, but provides detailed statistics on:

• 🔌 Instantaneous power (in watts)
• ⚡ Voltage in the network (in volts)
• ⏱️ The operating time of the connected device
• 📊 Cost of energy consumed (including tariffs)

The device connects to a 2.4GHz Wi-Fi network and transmits data to the Mi Home app (or alternative platforms like Home Assistant), which allows not only to track costs, but also to adjust automation, for example, you can program the heater to turn off if its power exceeds a predetermined threshold, or get a notification if the refrigerator starts to consume more energy than usual (which may indicate a malfunction).

It's important to understand that the Power Monitor is not just a power meter in the socket, it works in tandem with other Xiaomi devices like the Mi Smart Plug, Aqara Hub or Yeelight, which opens up a lot of possibilities for creating smart home scenarios.

• 🌡️ Automatically turn on the air conditioner when the room temperature exceeds 25°C, but only if the electricity consumption in the house does not exceed the limit.
• 🔦 Turn off decorative lighting when no one is at home (according to the geolocation of the smartphone).
• 📱 Receive push notifications if the washing machine has completed the cycle (on the drop in power consumption).

Xiaomi Power Monitor models: comparison and features

Xiaomi has released several versions of the Power Monitor to date, which differ in functionality, design and compatibility, and here is a comparison table of current models (2026):

The most popular model is the Mi Smart Power Monitor (ZNCZ04LM) — It supports a maximum power of up to 3680 watts, which allows you to connect most household appliances (except for high-power heaters or electric stoves). However, if you want higher accuracy or integration with Apple HomeKit, it’s worth considering options from Aqara.

Important: Zigbee-enabled models (e.g. Aqara) SP-EUC01) Requires a hub (e.g. Aqara Hub) M2), While Wi-Fi versions work independently, this is a good idea to consider when choosing if you don't already have a smart home ecosystem.

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If you plan to connect powerful appliances (for example, a heater or water heater), choose a model with a current reserve of at least 20%. For example, for a 10 A device, take a 12-16 A socket.

How to connect and configure Xiaomi Power Monitor?

The process of connecting the Power Monitor varies from model to model, but the algorithm is similar for most devices (ZNCZ04LM):

1. Download Mi Home (for Android or iOS) and register/authenticate.
2. Adding the device. Press. + → Add the device → Sockets and switches → Mi Smart Power Monitor.
3. Connect to the network. Put the device in the socket, wait for the indicator to flash and follow the instructions in the application (select 2.4 GHz Wi-Fi network).
4. Set up tariffs. In the device card, go to Settings → Electricity tariffs and current prices per kWh.
5. Integration with automation: Create scenarios in the Automation section (e.g., disabling the device on schedule).

For models with Zigbee (e.g. Aqara) SP-EUC01) algorithm is slightly different:

Once connected, you can see energy consumption charts by hour, day and month in the app.

• 📅 Schedule - automatic on/off time.
• 🔄 Cyclical timer – for example, turn on the heater for 30 minutes every hour.
• 🚨 Notifications – notifications when exceeding the specified power.

Practical scenarios of using Power Monitor

Now, let's look at how Power Monitor can be useful in everyday life, and here are some real-world cases from users:

1. Monitoring of energy-intensive appliances

Many people don't know how much electricity household appliances consume when they're on standby, like a TV or microwave that's plugged into a power outlet, can pull up to 10 to 50 watts even when they're off. With the Power Monitor, you can:

• 📺 Keep track of what your Xiaomi is TV consumes 0.5 kWh per day even when switched off.
• 🔌 Set up automatic shutdown of the socket at night when the technique is not exactly used.

2. Optimization of the work of heaters and air conditioners

Heaters and air conditioners are the main power eaters. With Power Monitor, you can:

• 🔥 Set a consumption limit (for example, no more than 2 kWh / hour) and automatically turn off the device when exceeding.
• ❄️ Synchronize air conditioning with temperature sensors (for example, Aqara Temperature Sensor).

Monitoring of household appliances

If your refrigerator or washing machine started consuming more power, it could indicate a malfunction.

• 🧊 Note that the refrigerator began to turn on more often (consumption growth by 20-30%).
• 🧺 Receive notification when the washing machine completes the cycle (by power drop).

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The most efficient way to save money is to combine Power Monitor with motion sensors and door openings, for example, you can turn off the lights in the closet if no one is there for more than 5 minutes.

Compatible with other Xiaomi devices

One of the key benefits of the Power Monitor is its integration into the Xiaomi ecosystem, which allows the device to interact with:

• 🏠 Smart hubs: Mi Home Hub, Aqara Hub, Redmi Router (with Zigbee support).
• 🔄 Sensors: temperatures (Aqara) T1), humidity, movement, opening of doors.
• 💡 Lighting: Yeelight lamps, Mi ribbons LED.
• 🗣️ Voice assistants: Alice, Google Assistant, Siri (via HomeKit).

Example of a complex scenario:

1. The motion sensor detects that there is no one in the room.
2. The Power Monitor checks that the TV and game console consumption exceeds 50 watts (meaning they are on).
3. The system sends a command to turn off the socket and turn off the lights.
4. When a person returns, the motion sensor activates the light again, and the socket is turned on only by voice command.

To configure such scenarios in Mi Home, go to Automation → Create → Smart scene and select triggers and actions:

IF [Motion Sensor: No Activity] AND [Power Monitor: Power > 50 W]


THIS [Switch off the plug] AND [Switch off the lights]

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For complex automations (such as time of day or weather), Home Assistant is better, and it supports more flexible scenarios than the standard Mi Home app.

Frequent problems and their solutions

Despite the ease of use, users sometimes have difficulty working with the Power Monitor, and consider the typical problems and ways to fix them:

⚠️ Warning: If the device suddenly stops displaying consumption data, check if the maximum power is exceeded (for example, connecting the stove to a 10 A socket will cause the protection to work).

If the device completely ceased to respond, reset to the factory settings:

1. Press and hold the button on the body for 10 seconds.
2. Wait for the indicator to flash (usually red) → blue-colored).
3. Reconnect through Mi Home.

⚠️ Warning: When using Power Monitor with powerful appliances (such as heaters), monitor the temperature of the socket case.°C, immediately disable the device – this may indicate an overload or malfunction.

Xiaomi Power Monitor Alternatives: Which One to Choose?

If Xiaomi’s Power Monitor isn’t right for you for some reason, consider alternatives from other brands:

• 🔌 TP-Link HS110 — Supports Wi-Fi support 2.4/5 Google Home and Alexa integration, but no Mi Home support.
• 🌐 Shelly Plug S – works over the cloud or local area network, high accuracy measurements, but requires configuration through Shelly App.
• 🍎 Meross Smart Plug – compatible with HomeKit, but limited functionality compared to Xiaomi.
• 🔄 Aqara Smart Plug (Zigbee) – Fully compatible with Xiaomi ecosystem, but requires a hub.

The advantages of Xiaomi Power Monitor over competitors:

• 🏆 Best integration with other Xiaomi devices (sensors, lamps, hubs).
• 📊 Detailed statistics with graphs and cost calculation.
• 💰 Price – usually cheaper than analogues with similar functionality.

However, if you need HomeKit or 5GHz Wi-Fi support, it’s worth considering options from TP-Link or Meross.

FAQ: Answers to popular questions