Xiaomi Graduator: Full instructions for use from unpacking to synchronization

Xiaomi’s smart thermometers are no longer exotic — they’ve become an essential part of a home medicine cabinet for those who value accuracy and convenience. But even a device as simple as a contactless thermometer or a smart Bluetooth thermometer can raise questions: how to measure temperature correctly, what settings to choose in the Mi Home app, and why readings sometimes differ from mercury?

In this article, we’ll look at everything from first powering on and calibration to synchronization with other Xiaomi devices (such as smartwatches or speakers), and focus on common errors that distort the results, and give a checklist to check the accuracy of the device. If you just bought a Xiaomi Mi Thermometer, Mijia iHealth or another model from the ecosystem, this guide will help you avoid typical problems and use the device 100%.

What Xiaomi thermometers are: comparison of models

Xiaomi produces several types of thermometers, and their functionality is very different, so to avoid making a mistake with the choice, let's analyze the main categories:

• 🔹 Contactless infrared – measure the temperature of the forehead or temples in 1-2 seconds (example: Xiaomi Mi Thermometer 2.
• 🔹 Ear thermometers – inserted into the ear canal (model Mijia iHealth) PT3). More precisely, contactless, but uncomfortable for newborns.
• 🔹 Smart electronics with a flexible tip and Bluetooth (such as Xiaomi Mi Smart Thermometer) synchronize with the application, keep a history of measurements.
• 🔹 Hybrid – combine infrared and contact methods (rare models, for example, Xiaomi Mijia iHealth) MT700).

The most popular ones for 2026 are the Mi Thermometer 2 (contactless) and Mi Smart Thermometer (with Bluetooth), the former cheaper and simpler, the latter more expensive, but more convenient for families with children due to the measurement history.

Important: Infrared thermometers show the temperature of the skin surface, not the internal temperature, so their readings can differ from mercury by 0.3-0.5°C is normal if you measure the forehead rather than the inguinal fold.

First incorporation and preparation for use

Before the first measurement, it is necessary:

1. Unpack the device and remove the protective film from the sensor (if any).
2. Install batteries (usually included) in models with USB-C (For example, Mi Thermometer 2 charging lasts for 1-2 years.
3. Check calibration - compare the readings with a mercury thermometer (the difference should not exceed 0.3)°C).

For smart models (with Bluetooth) additionally:

• 📱 Download the Mi Home app (App Store/Google Play).
• 🔗 Register or log into your Xiaomi account.
• 🔄 Click "Add device» → «Health» → Choose your model of thermometer.

⚠️ Note: If the thermometer shows knowingly incorrect values (for example, 32).°C at room temperature, don't rush it back. Check it first:

⚠️ Attention: Infrared sensors are sensitive to moisture. If you've just washed or sweated, wipe your forehead with a dry wipe before measuring. Condensation on the sensor also distorts the results.

How to measure temperature: step-by-step instructions

The algorithm depends on the type of thermometer. Let's look at two of the most popular options.

A non-contact infrared thermometer (e.g. Mi Thermometer 2)

1. Turn on the device with a long press on the power button.
2. Bring the sensor to the center of the forehead at a distance of 1-3 cm (without touching the skin!).
3. Press the measurement button and hold until the sound is heard (usually 1-2 seconds).
4. Write down the result. If necessary, repeat the measurement 2-3 times at intervals of 1 minute.

💡 Tip: To be more accurate, measure the temperature in the same place (for example, always on the forehead, or on the forehead, then on the temple.

Smart electronic thermometer (such as Mi Smart Thermometer)

1. Turn on the thermometer and wait for the signal of readiness (blinking indicator).
2. Place the tip under the arm, in the mouth or rectally (depending on the model).
3. Wait for the audible signal (usually 30-60 seconds for axillary measurement).
4. The result will automatically be saved in the Mi Home app if the device is synchronized.

⚠️ Attention: Normal values are higher in oral or rectal measurements than under the arm! Compare results with the standard for the chosen method:

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If the thermometer shows a temperature below 35°C, check the battery. A discharged battery often gives you understated results.

Synchronization with Mi Home and other smart thermometers

The main advantage of Xiaomi smart thermometers is the integration with the ecosystem. Once connected to the Mi Home, you can:

• 📊 Keeping a measurement history with reference to time and date.
• 🔔 Set up temperature alerts (e.g., above 37.5)°C).
• 📱 View data on a smartphone or smart watch Mi Band.
• 👨‍⚕️ Export a story for a doctor (in format) PDF screenshot).

To connect the thermometer:

1. Open Mi Home and press «+» → «Add the device».
2. Select the Health category and your thermometer model.
3. Follow the instructions on the screen (usually hold the button on the thermometer for 5 seconds until the indicator flashes).
4. Wait until the synchronization is complete (it can take up to 1 minute).

🔹 Useful Lifehack: In the device settings in Mi Home, you can enable the option “Switch off after measurement”, which will save battery power if you often forget to turn off the thermometer.

Common Mistakes and How to Avoid Them

Even with a smart thermometer, it's easy to get inaccurate results. Here are the most common user errors:

• 🌡️ Wrong distance on the non-contact measurement. Hold the sensor 1 to 3 cm from the forehead -- no closer, no further.
• 💦 Wet skin or sweat. wipe your forehead with a dry wipe before measuring.
• ❄️ Cold room, if the room is below 18°C, the thermometer may be underestimating. Before measuring, sit in a warm place for 5 minutes.
• 🔋 Battery's dead. At low charge, infrared sensors are unstable.
• 👶 Measurement during feeding or crying (in children) Temperature may temporarily rise by 0.5-1°C.

⚠️ Warning: If the thermometer after calibration constantly shows overestimated or underestimated values (the difference with mercury is more than 0.5)°C, check it at the service center, maybe the sensor is a malfunction, not a user error.

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For maximum accuracy, always take 2-3 consecutive measurements at 1 minute intervals and take the average.

What to do if the Xiaomi thermometer does not work

If the device is not switched on, not synced, or shows an error, try the following steps:

🔧 Resetting settings (if the thermometer is glitchy):

1. Turn off the device.
2. Press the power button for 10-15 seconds until the indicator flashes.
3. Release the button - the device will reset to the factory settings.

If the problem persists after the reset, check if the warranty period (usually 1 year) has expired, in which case the repair or replacement will be done free of charge.

Comparison with analogues: is it worth buying a Xiaomi thermometer

Compared to traditional mercury or electronic thermometers, Xiaomi devices have a number of advantages:

• ⚡ Speed: Infrared models give the result in 1-2 seconds (versus 5-10 minutes in mercury).
• 📱 Smart features: measurement history, notifications, synchronization with other gadgets.
• 👶 Safety: no mercury, no beat, suitable for children.
• 💰 Price: cheaper than many branded analogues (for example, Braun or Omron).

But there are downsides:

• 📉 Accuracy: Infrared thermometers are less accurate than contact ones (accuracy up to 0.3–0.5).°C).
• 🔋 Battery dependency: If you forget to charge, the device will stop working at the right time.
• 📶 Synchronization problems: sometimes Mi Home loses contact with thermometer.

💡 Xiaomi’s high-speed high-speed balloons are ideal for families with children, where speed and safety are important.If medical accuracy is needed (for example, for chronic disease control), it is better to use a mercury or professional electronic thermometer.

FAQ: Answers to Frequent Questions