Xiaomi Mi Home Temperature & Humidity Monitor 2 Real-time Monitoring Indoor Temperature & Humidity change, Improve the comfort level of indoor environment

Have got a total of three of these now, and was initially using them with the Mi app and that worked perfectly.

However, I needed more and wanted to be able to read temperatures while I was away from home so I was glad to find they are compatible with Home Assistant running on a Raspberry Pi 4. A few months on and I've flashed them with a custom firmware so they report the temperature into HA every 120 seconds (default firmware is 10 minutes) and I've coded my own bit of YAML to use them to control the WiFi connected heaters around my house, via a simple Thermostat interface.

All in all, very happy with this product. Just note they do n...view more Have got a total of three of these now, and was initially using them with the Mi app and that worked perfectly.

However, I needed more and wanted to be able to read temperatures while I was away from home so I was glad to find they are compatible with Home Assistant running on a Raspberry Pi 4. A few months on and I've flashed them with a custom firmware so they report the temperature into HA every 120 seconds (default firmware is 10 minutes) and I've coded my own bit of YAML to use them to control the WiFi connected heaters around my house, via a simple Thermostat interface.

All in all, very happy with this product. Just note they do not come with batteries and you'll have to buy these separately.

when i bought it i wasn't aware that also works with Amazon Alexa, today after placing the unit next to my heat pump control Panel, i got a notification from Alexa that a new device was installed automatically, so I asked Alexa, what is the temperature in the Control Panel (name i gave it) & Alexa would tell me the Temperature.

Beside being able to see the Temperature from my phone through the MI app, now also have the option to ask Alexa for the temperature, still not sure what else can be done with Alexa.

NOTE: I also have a MII hub / gateway (Xiaomi Gateway 3) , not sure that has anything to do with Alexa recognizing the unit. when i bought it i wasn't aware that also works with Amazon Alexa, today after placing the unit next to my heat pump control Panel, i got a notification from Alexa that a new device was installed automatically, so I asked Alexa, what is the temperature in the Control Panel (name i gave it) & Alexa would tell me the Temperature.

Beside being able to see the Temperature from my phone through the MI app, now also have the option to ask Alexa for the temperature, still not sure what else can be done with Alexa.

NOTE: I also have a MII hub / gateway (Xiaomi Gateway 3) , not sure that has anything to do with Alexa recognizing the unit.

A great little device that comes a with double-sided sticker but I wish there was a better way of mounting it on a wall to make it easier to remove and put back, like when you have to change the batteries. A great little device that comes a with double-sided sticker but I wish there was a better way of mounting it on a wall to make it easier to remove and put back, like when you have to change the batteries.

Neat to have an idea of how hot the rooms are getting around the house. Without a central hub we can't collect data over the web from them, but when near them we can use bluetooth low energy to read them from our phones, and they store a bit of history so we can see how the temperature and humidity have been changing throughout the day. Neat to have an idea of how hot the rooms are getting around the house. Without a central hub we can't collect data over the web from them, but when near them we can use bluetooth low energy to read them from our phones, and they store a bit of history so we can see how the temperature and humidity have been changing throughout the day.

If your looking for a smart monitor - this is not that one. If you're looking for a dumb monitor - this is the one for you. All the smart features require you to be connected via Bluetooth at all times - so really, you need the hub for this else nothing will work once you disconnect .... notifications .... the lot

But if your willing to walk up and manually check this monitor as and when you want this is the device for you - it does that very well. If your looking for a smart monitor - this is not that one. If you're looking for a dumb monitor - this is the one for you. All the smart features require you to be connected via Bluetooth at all times - so really, you need the hub for this else nothing will work once you disconnect .... notifications .... the lot

But if your willing to walk up and manually check this monitor as and when you want this is the device for you - it does that very well.

For a small device like this it will surprise you how much information you can get plus setting up a smart home this is one of the gadgets to get! For a small device like this it will surprise you how much information you can get plus setting up a smart home this is one of the gadgets to get!

Works as indicated. Handy to know the temps and humidity in the house. Been using it for 3 months now and loving it. Works as indicated. Handy to know the temps and humidity in the house. Been using it for 3 months now and loving it.

By: Navin_M 15/03/21

Verified Owner

We always wanted a simple temp and humidity monitor in our living room. This little guy does the job brilliantly, without breaking your bank. Highly recommended. We always wanted a simple temp and humidity monitor in our living room. This little guy does the job brilliantly, without breaking your bank. Highly recommended.

I was fed up with analogue hygrometers in my humidor as I never found them as accurate as I'd like and the specialist humidor digital ones are expensive in NZ.
Thought I'd give this a go, even though I was wary that there is no way to calibrate it. Needless to say, I was pleasantly surprised, and when given the salt calibration test, it read 76% right out of the box! To put this into perspective, 75% is what it should be, but this particular hygrometer states that it has a ~1% variance so I was happy, so this meant that it was performing as promised.

I've only been using it for a day so far and we'll see how well it holds up, but for $15 ...view more I was fed up with analogue hygrometers in my humidor as I never found them as accurate as I'd like and the specialist humidor digital ones are expensive in NZ.
Thought I'd give this a go, even though I was wary that there is no way to calibrate it. Needless to say, I was pleasantly surprised, and when given the salt calibration test, it read 76% right out of the box! To put this into perspective, 75% is what it should be, but this particular hygrometer states that it has a ~1% variance so I was happy, so this meant that it was performing as promised.

I've only been using it for a day so far and we'll see how well it holds up, but for $15 I think you can't go wrong.

The unit is nice and compact, but there are significant design flaws, namely that the backplate is mounted via adhesive, and you have to remove the backplate to change the battery, so you will need to replace the adhesive every time you need a battery change, which I admit is not frequent, but can be a pain for renters. I prefer version 1 (I have both), of the product. It comes with a mounting plate, which you can detach easily from the unit when you need to change the batteries. The unit is nice and compact, but there are significant design flaws, namely that the backplate is mounted via adhesive, and you have to remove the backplate to change the battery, so you will need to replace the adhesive every time you need a battery change, which I admit is not frequent, but can be a pain for renters. I prefer version 1 (I have both), of the product. It comes with a mounting plate, which you can detach easily from the unit when you need to change the batteries.

By: NickL38 25/03/22

Verified Owner

Perfect, I carry it around living room and office just to ensure optimal working environment. (Often time you might not realized it's too hot, too cold or too humid until you're sweating in your office so this is good for me for getting a quick glance on the temp.

Gets the job done <3

DOES NOT COME WITH BATTERY - don't forget to buy one. Perfect, I carry it around living room and office just to ensure optimal working environment. (Often time you might not realized it's too hot, too cold or too humid until you're sweating in your office so this is good for me for getting a quick glance on the temp.

Gets the job done <3

DOES NOT COME WITH BATTERY - don't forget to buy one.

Excellent and accurate. Haven't used Bluetooth function, I have them stuck all over my house as to monitor temp and humidity as I get cold and wife gets hot so now I have some recourse for the climate control disscussions. Excellent and accurate. Haven't used Bluetooth function, I have them stuck all over my house as to monitor temp and humidity as I get cold and wife gets hot so now I have some recourse for the climate control disscussions.