This was posted 3 years 1 month 14 days ago, and might be an out-dated deal.

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Xiaomi Mijia Bluetooth Temperature Humidity Sensor 4 Pack US$14.99 (~A$20.22) Delivered @ GeekBuying

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Xiaomi Mijia Bluetooth Temperature Humidity Sensor 4 Pack US$14.99 (~A$20.22) Delivered @ GeekBuyingAffiliate
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AssociatedClear on 04/11/2021 - 21:52 geekbuying.com (3054 clicks)
Last edited 08/11/2021 - 18:50
63IGBWYA
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These previously popular Xiaomi Bluetooth temperature humidity sensors are back on sale again and in a pack of 4 that works out to be cheaper than the cost of 1 from Xiaomi AU.

Edit: For those who received an email newsletter from GeekBuying recently, there is a link to this for US$13.99.

These monitors will display the current temperature/humidity and can be linked with other Xiaomi smart home products via the Mi Home app. It also has a "baby monitor" mode where it will send you an alert through the Mi Home app when the temperature and humidity go too high or too low.

For those who are into tickering there is a custom firmware project for this too.

  • Apply the coupon 63IGBWYA at checkout

AU$ based on current Mastercard rate, free shipping and priority shipping available for 7 cents.

Other Deals:

Electrical & Electronics Hygrometer Thermometer Xiaomi

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closed Comments

  • muncan on 04/11/2021 - 22:16
    +4

    priority shipping available for 7 cents

    nope

  • ekul777 on 04/11/2021 - 22:21
    -4

    Don't waste your time.
    These things don't give a measurable temperature and you need to be really close to it to get an updated temp because its using bluetooth.

    • dust on 04/11/2021 - 22:33

      They were pretty popular last time this was posted. Are you saying they're not very accurate?

      • ekul777 on 05/11/2021 - 00:50
        -2

        Yeah sorry I mean they're inaccurate

    • itsTricky83 on 04/11/2021 - 23:01
      +10

      Ther is a screen on it! Which I find makes it very measurable?
      I have 4 of these and they are great.
      I even chuck one in my portable fridge when I go camping and keep tabs on the temp via Bluetooth on my phone.

      • fantombloo on 04/11/2021 - 23:08
        +8

        Yes I have 4 of these and a couple other cheapies scattered throughout the workplace and they seem to do a decent enough job. Humidity within +-10%, temperature within +-1 - pretty good for cheap devices.

        • Thergle on 05/11/2021 - 00:14

          Thanks, I need something more accurate for humidity and temperature. Any recommendations on other affordable ones?

          • sutiive on 05/11/2021 - 08:37
            +1

            @Thergle: @Thergle: Pure curiosity - why do you NEED something more accurate? I get we'd all like the most accurate if available at a similar price point…but need? Are you Alan Wilkie?!

            • JPerez on 05/11/2021 - 08:42
              +1

              @sutiive: Probably for small indoor plants/farming?

              Chicken coups within a shed?

              Food storage?

              There are multiple uses for accurate temp and humidity devices.

        • ameyas7 on 05/11/2021 - 08:29
          +1

          Yes, I got one from one of earlier deals. I'd say it's a decent for temperature and humidity sensor in general (compared to another unit I have and weather apps) but I couldn't get it to work with mi home app so the Bluetooth part is meaningless for me. Tried various options like changing home country to China etc but still no luck with Bluetooth connectivity. I don't have any firmware flashing device so flashing custom firmware isn't really an option for me.

          • Telios on 05/11/2021 - 08:41
            +1

            @ameyas7: Yeah it's just normal non-Chinese Xiaomi shenanigans.

            After a firmware update my old GPS watch basically completely lost accuracy, and to this day I still believe it's because they wanted to (profanity) with us.

          • bio on 05/11/2021 - 10:47
            +2

            @ameyas7: I believe you can update firmware OTA (over-the-air). No need for a specific flashing device: https://github.com/pvvx/ATC_MiThermometer#flashing-or-updati…

            • ameyas7 on 05/11/2021 - 11:09

              @bio: Thanks will give it a go.

          • applebernie on 05/11/2021 - 14:02

            @ameyas7: Mine works well with the mi home app.

            • ameyas7 on 05/11/2021 - 19:30

              @applebernie: Oh cool. Did you have to change country (in user profile) or reset device or anything else?

              • applebernie on 08/11/2021 - 11:35

                @ameyas7: Nah, I just use the default setting, my region shows Australia.

      • Polska Kielbasa on 04/11/2021 - 23:11
        +1

        Thanks, this was enough to hit buy for me. Missed out last time.

    • Borg on 04/11/2021 - 23:07
      +2

      I get great coverage however they connect to HomeAssistant and that PC has a Bluetooth Dongle so perhaps goes a lot further than via a mobile phone?

    • Jenny Death on 04/11/2021 - 23:38
      +8

      These things don't give a measurable temperature

      Wut?

    • Thergle on 05/11/2021 - 00:20

      Thanks @ekul777 do you have recommendations on ones that don't need blluetooth and are accurate?

      • Jenny Death on 05/11/2021 - 00:48
        +4

        These are accurate and only need Bluetooth for wireless reading. For my 3 they all read the same humidity and temperature, but one is off by +0.1°. this can actually be fixed by putting an offset on it. You don't even need to use an app or home gateway, there's a website you can go to that will read the sensors.

        • ameyas7 on 05/11/2021 - 08:36

          Interesting, my Bluetooth connectivity isn't really working. How will any website read/ collect data from these sensors as they aren't really connected to internet?

          • muncan on 05/11/2021 - 09:04

            @ameyas7: Mine only connect within the Mi Home app. I can’t see mine under my iPhone’s nearby Bluetooth devices (in case that’s how you’re trying to connect).

            • ameyas7 on 05/11/2021 - 09:12

              @muncan: No I tried via Mi home app only. Tried resetting the device, tried switching home country to AU, CN etc but still no luck. Bluetooth interface is visible via phone but I know it's meant to work with Mi Home app primarily but couldn't get that part working.

          • Jenny Death on 05/11/2021 - 10:08
            +1

            @ameyas7: It runs as a local webapp, so you still need Bluetooth on your PC
            https://github.com/pvvx/ATC_MiThermometer
            Guide and better fw imo

        • bargainparker on 06/11/2021 - 16:23

          You don't even need to use an app or home gateway, there's a website you can go to that will read the sensors.

          It would be handy to know the website.

      • ekul777 on 05/11/2021 - 00:51

        Look for a wifi model.

    • GregFiona on 05/11/2021 - 07:15

      mine are very accurate, I don’t use the bluetooth connectivity much but at least the temp is accurate

    • asa79 on 05/11/2021 - 08:53

      You can connect to it via bluetooth and raspberry pi or via the yeelight bedside lights as well

    • tik tok on 05/11/2021 - 09:15

      These are pretty hit and miss in my experience too. But you can't really go against the majority's opinion here on ozb, so expect more negging. That may also be because most people aren't that sensitive to temp/humidity fluctuations.

      • muncan on 05/11/2021 - 10:05

        Ironically, snowflakes are pretty sensitive to temp/humidity fluctuations.

      • McFly on 05/11/2021 - 12:09
        +2

        These are pretty hit and miss in my experience too. But you can't really go against the majority's opinion here on ozb, so expect more negging.

        Or maybe - stay with me - just maybe, your experience isn't identical to everyone else's…

  • laser on 04/11/2021 - 23:01
    -3

    I have never received any of my orders.

    • AssociatedClear @ Geekbuying on 05/11/2021 - 07:49
      +2

      You've never sent me a PM or commented on previous deals about not receiving an order. Please provide me with the order numbers so that can be sorted.

      • laser on 05/11/2021 - 12:32
        +1

        Order No: 5299001never received. Previous order also not received but refunded - 5190774.

  • Borg on 04/11/2021 - 23:05

    Grabbed these 2 days ago from here. Was $1 less @ $13.99. Regardless $14.99 is still decent enough.

    • Hugh G Rection on 05/11/2021 - 07:12
      +5

      FALSE

      since you mentioned this, i can no longer buy. i have to wait until its $13.98 or im throwing away money.

      thanks a lot buddy.

  • AaronR on 04/11/2021 - 23:06
    +1

    These are not wifi right? Does anyone use them with Home Assistant? Or can recommend a temperature sensor for Home Assistant?

    • Borg on 04/11/2021 - 23:09
      +5

      No, not WiFi. They work very well with Home Assistant. I even stuck one in my fridge and have HA email me if above 3 degrees for more than 15mins.

      • sini180 on 05/11/2021 - 00:56
        +1

        As above, use 4 with Home Assistant and work great. These are fantastic for the price.

        • nurvo on 05/11/2021 - 02:09

          Which ESP32 board did you guys get?

          • Borg on 05/11/2021 - 09:33

            @nurvo: @nurbo: In my case I didn't need one as the Bluetooth dongle on PC reaches the Fridge. I believe any ESP32 with Wifi and bluetooth onboard should work. Comes down to how you want to power it as various models come with various options. Plenty of Youtube vids about these and HASS. Perhaps others here who use can advise better.

      • beetle25 on 05/11/2021 - 02:12

        I would like to have the work fridge monitored from home. Would greatly appreciate it if you can share how you set this up. Thank you.

        • ozhunter68 on 05/11/2021 - 09:34

          Not an expert but sounds like you need a wifi version connected to a wifi network similar to those wireless security cameras.

          Then you can hook up remotely via internet using smartphone or computer.

          These are bluetooth and require you to be within range to read it, usually 5-30 metres.

          Edit: Maybe possible using a bluetooth Gateway, see comments below.

          With the xiamo gateway using the mi home app, yes. I dont use any assistant voice stuff so best ya google it.

      • asa79 on 05/11/2021 - 09:01

        How do you find the fridge humidity and the unit go

        • Borg on 05/11/2021 - 09:26
          +1

          @asa79: Not sure what you are asking. Humidity is low in a fridge (currently 22%). Outside is 89% due to rain overnight.

  • L0zBargain on 04/11/2021 - 23:12

    I like mine, but can anybody recommend a cheap bluetooth gateway that will work with these? I don't want to have to individually connect to each one via bluetooth each time and also wish I could pull the data from the cloud…

    • Xizor on 04/11/2021 - 23:27
      +3

      The official xiaomi gateway 3 is under $40, does mesh Bluetooth, zigbee etc

      • Augh on 04/11/2021 - 23:35

        I too am looking for a cheap way to access these reading remotely.
        Can I use an old android phone to capture and upload the readings or is there an application I can run on an old windows box.

        If using xiaomi gateway 3, how do I access the reading when not at home?
        Are they available via an app or reported to some cloud service.

        Any integration with google assistant, e.g. “hey Google, what is the greenhouse temperature”

        • Xizor on 04/11/2021 - 23:43
          +1

          With the xiamo gateway using the mi home app, yes. I dont use any assistant voice stuff so best ya google it.

      • pizzaguy on 04/11/2021 - 23:51

        Other comments suggest that the BT range of the ensors is terrible. So the gateway would need to be close to the sensors, right? Ta

        • Borg on 05/11/2021 - 00:07
          +3

          Not necessarily. It depends on the range of the bluetooth on the Gateway and your environment. As I noted above all mine connect to a single Bluetooth Dongle (connected to PC. The range is decent and tested to approx10m so far without issue and through double brick. What distance are you looking to reach?

          • pizzaguy on 05/11/2021 - 00:34

            @Borg: Rather further than 10 metres from each other, so they won't all be in range at the same time.

            So to get and save reading, I'd normally need to connect to each one via BT and get the reading in the app?

            (edit: I've just noticed it's running on a coin battery, kinda deal braker to me)

            • Borg on 05/11/2021 - 00:40

              @pizzaguy: I must test full distance capable tomorrow as 10m is all that I need max.
              Readings on all x4 current in use: I am not sure and from memory, I set mine to read approx every 1min. I just checked and oldest reading was 1 min or less ago.

          • Augh on 05/11/2021 - 01:00

            @Borg: What are you running on the PC to pull the readings, HA?

    • imho on 05/11/2021 - 07:57

      I use an ESP32 board with set-up with firmware from Esphome.io. Esphome then feeds in to Homeassistant.
      The ESP32 listens for the low power Bluetooth broadcasts from the temperature sensor.
      This uses much less battery on the sensor than actually connecting to it over Bluetooth.
      Broadcast interval customisable using custom sensor firmware. (Links from esphome.io)
      Battery life has been up to a year.
      The single esp32 is able to pick up the broadcasts from sensors in and outside the house.
      (Ahh. Reading on a phone. I now see similar comments already below.)

    • Augh on 14/11/2021 - 13:27
      +2

      Thanks to all the help on this thread,
      I got an ESP32 board ($13 on Amazon)
      Used ESPHome to configure and upload the firmware,
      and got it reporting to Adafruit.
      See the dashboard here
      https://io.adafruit.com/Augh/dashboards/esp32-sensors

      So, so far the cheapest way to get the data into the cloud is an ESP32 board.

      I have one Xaomi sensor with original firmware and the other Xaomi with the alternate ATC firmware.

      The overhead to do the above was that I needed to setup a linux box to run ESPHome, but once the ESP32 is configured then the linux box is not part of the picture.
      Here is a tutorial for uploading toThingsboard
      https://medium.com/@chatupornrungcharoesrichai/use-esp32-to-…

      I need to play around with different services and see which works best for me and ideally something with Google Assistance integrations.
      Will check out Thingsboard and Arduino IO next.

      • Borg on 14/11/2021 - 18:04

        I have an ESP32 and 4 more of these due to arr tomorrow. Might play around with above as a matter of interest rather than adding all directly to HA via HACs. Thanks for links and examples.

  • theUnderdog on 04/11/2021 - 23:23

    I got 3 from the last deal. Bt range is shocking otherwise I'm happy

    • abarnesy on 05/11/2021 - 00:09
      +2

      Mine were originally bad with an RPi 3B+. I moved the Pi away from other metal objects and it now works 20m+ through multiple internal walls

      • sini180 on 05/11/2021 - 00:59

        I have 4 of these and one is ~20m away on the outside of a brick house, doesn't miss a beat.

    • Hugh G Rection on 05/11/2021 - 07:11

      shockingly good or shockingly bad?

  • Thergle on 05/11/2021 - 00:14

    Can these be used without ever needing to connect to bluetooth?
    And can bluetooth function be disabled on this?
    Just after a simple cheap device that does accurate (or close to) humidity and temperature (and bonus if it tells time but not necessary).

    • AssociatedClear @ Geekbuying on 05/11/2021 - 00:51

      Yeah they'll display temp and humidity without needing to connect to Bluetooth.

    • Jenny Death on 05/11/2021 - 00:51
      +1

      Yes, just pull the plastic tab out and it works fine. It will always emit a tiny signal but it doesn't really matter. You can hack these to alternate between telling the time and showing the temperature. Maybe the official app lets you do this, idk never used it

  • wombat81 on 05/11/2021 - 00:30

    Do these work with any other apps?

  • pizzaguy on 05/11/2021 - 00:38

    CR2032 battery. That sucks.

    • rabbitaaron on 05/11/2021 - 03:19
      +2

      Mine ran a whole year without replacing the battery

    • Hugh G Rection on 05/11/2021 - 07:10
      +3

      mine lasted a whole year + 1 day without replacing the battery.

      • pizzaguy on 05/11/2021 - 10:06

        How often are your sensors communicating via BT?

        Was it a year (+ a day) of regular readings by another device, eg. every 1-60 mins, or just hanging on the wall being occasionally read, sometimes via BT?

        • Borg on 05/11/2021 - 13:08
          +1

          Mine are 2 months old and still 90%+ battery (incl the one in the fridge). Readings are taken (not exactly sure what I set) but at least once every minute from all. I have no issues with them being CR2032 battery as makes them smaller and as others noted, am guessing should last a year.

          • pizzaguy on 05/11/2021 - 14:13

            @Borg: That's impressive. The battery type still sucks big time, but it's not as bad. Thanks.

  • MysticalWok on 05/11/2021 - 01:21

    Is the displays on these much easier to view at a distance compared to the e-ink Xiaomi Mijia Hygrometer?

  • beetle25 on 05/11/2021 - 02:08

    I need to know if work fridge is over 8 degrees Celsius. Can this be setup to email or text me when that happens?

  • open4highway on 05/11/2021 - 02:59
    +1

    I bought it but not sure what to do with it.
    Ozbargain fever is ON..!!

  • rabbitaaron on 05/11/2021 - 03:20
    +3

    These can be flashed with this custom firmware
    https://github.com/atc1441/ATC_MiThermometer

    then you can get a cheap ESP32 board, flash with ESPHome and then integrate with Home assistant. Got 8 in my house, works great.

    • stratbargain on 05/11/2021 - 06:19

      They work with esphome with the stock firmware too. No need to flash unless you want extra features

      • Hugh G Rection on 05/11/2021 - 07:09

        exactly, i was wonder what the hell he was talking about. lol

      • wombat81 on 05/11/2021 - 08:15
        +1

        What are the extra features?

        • rabbitaaron on 05/11/2021 - 15:32

          If you're using Telink Flasher to get the bind key, you might as well just flash it there, it's on the same interface.

          You can customise how often it advertise, or immediate advertise on temperature change range (like: if temp drop for 2 degrees, advertise immediately)

  • naru6705 on 05/11/2021 - 07:19

    Oh man bought last week from bangood

  • superpoo2 on 05/11/2021 - 08:28

    Looks like the price may have gone up to $18.99 US. Just tried to order and after entering the code I get: "The deal price is either lower or same as the coupon price for this order."

    • aXit on 05/11/2021 - 08:58

      Just worked for me.

    • Misasagi on 05/11/2021 - 09:04

      same here. Coupone not working.

  • burningrage on 05/11/2021 - 09:17

    Thank you OP.

  • outregis on 05/11/2021 - 09:19

    No more stock :(

  • AssociatedClear @ Geekbuying on 05/11/2021 - 09:20
    +4

    I'll see if I can get more stock allocated later today.

  • fowl on 05/11/2021 - 09:57

    Wish the nice eInk ones would come back :(

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