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INKBIRD Smart Indoor Air Quality Monitor IAM-T1 $118.99 Delivered @ LerwayDirect Amazon

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INKBIRD Smart Indoor Air Quality Monitor IAM-T1 $118.99 Delivered @ LerwayDirect AmazonAffiliate
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quanticism on 03/02/2024 - 00:19 amazon.com.au (589 clicks)
Last edited 03/02/2024 - 12:01 by 1 other user
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I've seen people mention CO2 monitors a few times so I decided to buy one to see what my CO2 levels are when I close my windows and turn on the aircon for the whole day and whether it's worth opening the window a bit.

Review here: https://www.youtube.com/watch?v=A6Fr2_tq5-U

There's also a cheaper model for $70: https://www.amazon.com.au/INKBIRD-Detector-Accurate-Temperat…

Price History at C CamelCamelCamel.
Electrical & Electronics Air Quality Monitor Carbon Dioxide Monitor Inkbird

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closed Comments

  • bdl on 03/02/2024 - 00:39
    +7

    For those with a Home Assistant install you can build something similar yourself by modifying an ikea one: https://style.oversubstance.net/2021/08/diy-use-an-ikea-vind…

    • Stuj on 03/02/2024 - 08:53

      This is brilliant! That’s my weekend project sorted

    • bargainshooter on 03/02/2024 - 09:00
      +9

      Not exactly (actually nothing like it) - the ikea monitor doesn't have a CO2 NDIR sensor. Actually, no CO2 sensor whatsoever. And the particulate sensor is pretty inaccurate. https://www.airgradient.com/blog/ikea-vindriktning-accuracy/
      If you really want a decent HA linked particulate sensor, go for a Plantower PMS5003.

      • bdl on 03/02/2024 - 17:27

        Ikea $19 > Plantower PMS5003 $70

        • bargainshooter on 03/02/2024 - 21:17

          I purchased a PMS5003 for approx $35.

    • Carrera1963 on 03/02/2024 - 09:12
      +2

      There’s a newer IKEA model with zigbee, so no hacking required.

      • bdl on 03/02/2024 - 17:26

        hacking is fun :)

        plus you can put other sensors on the esp should you wish

  • ozilicious on 03/02/2024 - 04:06
    +10

    So cracking a window worth it?
    I'm hoping to save $118.99.

    • bargainshooter on 03/02/2024 - 09:00
      +1

      Definitely worth it - if that's available to you.

    • quanticism on 03/02/2024 - 12:05
      +1

      https://twitter.com/AndreyAzimov/status/1753375988543574295

      Probably yes :) I just got mine so I'll play around with it for 1-2 days to get an idea.

    • bargainshooter on 03/02/2024 - 21:13

      My previous comment about being worth it - was about opening a window. That's not always possible in many offices, school classrooms, sealed buses, reception areas, shopping malls, airplane cabins….

  • sweetss on 03/02/2024 - 06:30

    You might need to read this…
    https://www.theatlantic.com/health/archive/2023/02/carbon-di…

    • boomramada on 03/02/2024 - 08:02

      Can you summarise it? Pls

      • bargainshooter on 03/02/2024 - 08:16
        +2

        Tldr: the author discovered her air quality was poor, became anxious and didn't know what to do about it (not necessarily in that order). They are useful devices if you understand how to use them. Take them on a modern chartered bus where the CO2 can exceed 6000ppm and wonder how on earth do bus drivers not have more accidents or passengers don't pick up all sorts of airborne pathogens (they do).

        • J B S on 03/02/2024 - 11:30
          +1

          Wow didn’t know that - is the co2 from ppl in the bus or diesel exhaust fumes?

          • bargainshooter on 03/02/2024 - 21:08
            +2

            @J B S: Not much/any CO2 from the diesel exhaust/traffic is drawn into the cabin. It's all human exhaled air. But in my experience, traffic CO2 rarely exceeds 700ppm.

            Most "modern" charter buses in Australia are sealed for thermal "comfort" and unfortunately do not provide much, if any fresh air ventilation/intake. I ran tests with the owner of a local bus charter company over a number of days and CO2 would rise very quickly between stops to pick up/drop off passengers, reaching a high of 5000ppm, then dropping to 3500 when doors would open and increase again when doors were shut. During a longer 30min trip, the CO2 hit 6900ppm and remained above 4000ppm 10mins after all passengers disembarked. It's pretty scary, considering concentration and cognitive ability diminishes significantly above 3000ppm.

            • J B S on 04/02/2024 - 11:19

              @bargainshooter: That’s very dangerous it would seem. You’d think the government would do something ay like hepa 13 filters and fresh air flow intakes

              • bargainshooter on 04/02/2024 - 11:26
                +1

                @J B S: Almost no one is complaining, so why would they? Charter companies are private enterprise - not really accountable to gov per se for customer health and safety. It will take litigation and the ACL to make bus companies accountable.

                • J B S on 04/02/2024 - 11:28

                  @bargainshooter: I wonder if the bus manufacturers like Volvo etc have done tests ?

                  • bargainshooter on 04/02/2024 - 11:36

                    @J B S: Possibly. CO2 level monitoring, thresholds and display to consumers is being implement in a number of countries (eg South Korea) and the EU. But a manufacturer running a test with an empty bus is probably insignificant?

            • quanticism on 04/02/2024 - 15:37

              @bargainshooter: To play devil's advocate, the lack of bus crashes indicates that even 6000ppm CO2 does not diminish cognitive ability to the point that it affects driving ability so it's not a problem.

    • bdl on 03/02/2024 - 17:28
      +1

      My mate did something similar for both his house and air travel, the CO2 spikes in a plane in the time between when they close the doors and before the ventilation is operating optimally is something he says he now wishes he didn't know :)

      • bargainshooter on 04/02/2024 - 11:33
        +1

        The problem with planes is their fresh air intake only operates when travelling at speed and varies depending on ascent/descent/keeping altitude (no idea why). The better carriers run HEPA filtration when in flight but it's turned off when on the ground. So the danger period is when on the ground prior to take off until you reach altitude and just as descent commences. At least your mate now knows the risks and can decide what to do about it - I would personally prefer knowledge over hopium.

  • bargainshooter on 03/02/2024 - 08:08
    +3

    Both are decent. The iam-t1 is an aranet4 replica. Similar feature set and sensor but lacking an instant read function and battery life much poorer (about 3 months tops at highest samping rate). The other unit is much bigger, can only do around 18 hours unplugged but has wifi and is tuya based. Being bigger it's more suited to being used as a display in say a classroom or dining room (if you want to do that). Both have NDIR sensors. The iam-t1 was around $78 via their ebay outlet late last year. Recommend both for their relative accuracy.

    • Carrera1963 on 03/02/2024 - 18:22
      +1

      Any recommendations on a zigbee-based one with CO2?

      • SAU on 04/02/2024 - 12:46

        Only ever seen one Zigbee CO2 that was made in a garage somewhere in the east europe with 3d printer parts etc
        Whats your reason for Zigbee? The all have to be plugged in anyway for any decent use length

        • bargainshooter on 04/02/2024 - 12:49

          Aranet4 can go 1 year on 1min/updates with bluetooth without battery change. This IAM-T1 unit can do about 3 months without battery change.

        • Carrera1963 on 04/02/2024 - 19:39
          +1

          Zigbee because I already have zigbee for most of my HA devices.

  • SAU on 03/02/2024 - 12:38
    +1

    For HA just built one based on scd40 ($22 in Ali) sensor.
    Any esp board would do that can connect to HA. Or get one from Ali at the same time for few extra $$

    • bargainshooter on 04/02/2024 - 11:28

      The cheaper wifi unit has been on sale for around $40. Supports Tuya, has a large colour screen, configurable alarms, rechargeable and an NDIR sensor - that's a lot of components imo. Though the SCD40 does look good.

  • SAU on 04/02/2024 - 12:38

    If $40 one has a good NDIR, then its a bargain
    Though I never seen them go this cheap

    • bargainshooter on 04/02/2024 - 12:47
      +1

      Yeah it's fairly comparable to the Aranet4 and others in my testing. The stated error margin is 5% +- 50ppm, whereas the top of the line NDIR is 3% +-30ppm up to 5000ppm (from memory).

  • deadpoet on 07/02/2024 - 12:58

    Just got my Inkbird IAM-T1 from Amazon and have been testing it since yesterday. Overall accuracy for the NDIR CO2 sensor and the temperature sensor seems very good, and readings are virtually identical to my Aranet4.

    Where it falls down a bit is the humidity sensor, for some reason the humidity on my IAM-T1 reads 10% higher than all my other sensors (including SAF Aranet4, Govee H5075 and AcuRite 01083M Pro and Aqara Temperature & Humidity Sensor T1). Not a huge problem as the Inkbird app lets you recalibrate the humidity readout (by adding a -10% modifier), but for someone as OCD as me, a bit of a bummer.

    All in all, I'm pretty happy with this sensor, for the price it works great, and it's almost 1/3 of the price of the Aranet4 while having 90% of its functionality. The Inkbird app seems well designed and I have no complaints with it, though I'll be mostly using my IAM-T1 directly anyway by looking its e-ink display.

    I hope someone makes a Bluetooth integration for the IAM-T1 for Home Assistant, as I don't want to have to create a custom ESP32 setup just to get it hooked up. This is the one area where the Aranet4 has an advantage at the moment, as it is well integrated into HA already.

    • trixieb on 07/02/2024 - 13:12
      +1

      @deadpoet Thanks for your review. I bought IAM-T1 from eBay when it was newly released. I've nothing to compare with so it's good to hear its accuracy is very close to Aranet4.

      I had read this review: https://breathesafeair.com/inkbird-iam-t1-review/#:~:text=It….

    • bargainshooter on 07/02/2024 - 13:18

      It is possible that all the other humidity sensors are not well calibrated - but having the ability to adjust % is a big plus in my book. Do a salt container humidity calibration - you may be surprised how out of calibration your other sensors may be.

      • deadpoet on 07/02/2024 - 13:41
        +1

        You're right, it's a possibility all my other sensors are calibrated wrong, though I think it's unlikely. I know from long experience that the humidity in my climate-controlled workplace hovers around the 50% RH target and is fairly stable, while the Inkbird was reading 60% which seems very unlikely.

        I know what 60% RH feels like and this definitely isn't it.

        I haven't done a salt container calibration before, will have to try it sometime!

        • bargainshooter on 07/02/2024 - 18:30
          +1

          I found some time ago that all my devices, around 6 different makes and models at that time, were all fairly inaccurate but none had adjustable settings. I think being able to calibrate and adjust is a very useful option.

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