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SAF Aranet4 Home: Wireless Indoor Air Quality Monitor $249.24 Delivered @ Amazon US via AU

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SAF Aranet4 Home: Wireless Indoor Air Quality Monitor $249.24 Delivered @ Amazon US via AUAffiliate
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highon2str on 16/04/2024 - 11:55 amazon.com.au (645 clicks)
Last edited 16/04/2024 - 12:11 by 1 other user
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Ozb's favourite CO2 monitor is at an all time price-low.

About this item
BREATHE EASILY: Aranet4 CO2 meter measures CO2 levels, temperature, relative humidity, and atmospheric pressure in real-time, empowering you to make informed decisions for healthy ventilation. No wonder it's the top-rated indoor air quality monitor in Amazon's CO2 monitor segment!
CABLE-FREE: The power-efficient e-ink display guarantees an extended battery life of up to 4 years for this wireless air quality monitor, ensuring worry-free monitoring without the hassle of cables and cords.
EASY-TO-USE: The color coding, prominent CO2 number on the display, and optional buzzer of this air quality meter alert you when the CO2 concentration becomes too high.
FREE & INTERACTIVE APP: A smartphone application for viewing and analyzing up to 90 days of historical data from your indoor air quality meter, complete with user-friendly graphs.
PREMIUM QUALITY: Aranet4 carbon dioxide detectors use nondispersive infrared sensor (NDIR) technology for the most precise and reliable CO2 measurements. Made in the European Union.
ENJOY THE HEALTH BENEFITS: Air quality monitor indoor use helps people take better care of the atmosphere around them, leading to improved focus, mood, and overall well-being.

Price History at C CamelCamelCamel.
Electrical & Electronics Air Quality Monitor SAF

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closed Comments

  • jv on 16/04/2024 - 12:06
    -3

    measures relative humidity

    What is it relative to?

    • kiwizz on 16/04/2024 - 12:18
      +2

      It's all relative

      • jv on 16/04/2024 - 12:21
        +1

        To what?

        • Vecernik87 on 16/04/2024 - 12:25
          +5

          Relative humidity, often expressed as a percentage, indicates a present state of absolute humidity relative to a maximum humidity given the same temperature.

          Maximum humidity occurs when environment is fully saturated with water vapour and depends on temperature and pressure. Unlike common misconception, 100% humidity does not mean that environment is under water. It means the air is fully saturated and no more water can be evaporated in the environment.

  • Hinee on 16/04/2024 - 12:37

    What in gods name is going on in peoples homes that you need to be monitoring the CO2 levels?

    • deadpoet on 16/04/2024 - 12:56

      Doesn't have to be in your home, that's why these CO2 monitors are portable.

    • highon2str on 16/04/2024 - 12:58
      +5

      If we forget to leave a window slightly ajar, CO2 levels go over 1000ppm within an hour; when more than 4 people are at home, the increase noticeably exponential. If we forget to leave the kids' room doors ajar and they forget to open a window, CO2 levels peak at around 2500ppm overnight.

    • Wizard on 16/04/2024 - 14:23

      Don't sleep with a closed door if you have gas heating. The co2 can starve tour brain and make you drowzy or much worse.

    • NigelTufnel on 16/04/2024 - 16:17

      Breathing

  • bazingaa on 16/04/2024 - 13:15
    +7

    You can build high accurate one with MH-Z19B non-dispersive infrared (NDIR) sensor, $30 in AliExpress
    BME680 has higher accuracy for temperature, humidity, pressure etc and dev board costs $5

    install both of these inside $19 IKEA Vindriktning PM2.5 sensor with $5 ESP + Tasmota, you can monitor everything from WiFi (can be connected to Homeassistant as well). Total cost $60

    https://blakadder.com/vindriktning-tasmota/

    • Bdawg on 17/04/2024 - 11:41
      +1

      Lost me at soldering.

  • Monsta-AU on 16/04/2024 - 14:27
    +1

    But does it work with HOOOOOMMMEEE ASSSSISTAAAANT?

  • PukeyLuke on 16/04/2024 - 15:00

    I borrowed my sisters SAF Aranet4 and it's very sensitive to the change in CO2.
    If I had it in my car with the windows up then the CO2 levels would gradually increase, when I opened the windows the CO2 levels would drop dramatically.
    I can't vouch for it's accuracy but it's sensitivity to CO2 changes were spot on.

  • BBF on 16/04/2024 - 17:54
    +1

    Pity no CO or PM values for the price.

    How is this an "air quality monitor", when it doesn't measure it? No particulates or other gases etc. CO2 is hardly air quality.

    • daft009 on 16/04/2024 - 20:44

      Exactly. CO2 plays a part in IAQ but there is a lot more than just CO2

  • quanticism on 16/04/2024 - 19:05
    +1

    I got a Inkbird IAM-T1 a few months ago. The lesson I learned was to keep the window slightly open and the ppm generally averages out at around 750-800ppm for me. With my door completely open, it drops to around 400 ppm. A weird phenomenon I noticed a while back was that at night, the average ppm increases and sometimes my room goes over 1k ppm even with my window open. I have to open my door to get it back down. Makes me wonder diffusion isn't working at my windows.

    • Optimus Subprime on 17/04/2024 - 01:27

      From personal experience, using and owning both the Aranet 4 and Inkbird IAM-T1, I have noticed that even with the window or slightly open, if there is no wind that day at night, then the ppm would generally go much higher, around 900-1000ppm as well, whereas when there's wind outside, the room stays around 500-600 max. If the window is closed with wind outside, it goes between 700-800 ppm for me.

      • junet on 17/04/2024 - 14:47

        When there is no wind you can run a fan or the bathroom extractor to help lower the PPM. I find it's good to open around lunchtime/afternoon with the fans on to reduce the PPM and humidity. But I guess it also depends on PM2.5/smoke pollution which is getting worse from planned burns/woodfire smoke.

        • Optimus Subprime on 18/04/2024 - 23:09

          Oh nice, thanks for the advice, I'll give it a try! I didn't think the bathroom fan would have such an effect, but good tip! Thank you

  • Alx75 on 18/04/2024 - 11:07

    These two also monitor CO2 for less than half price, but they need to be plugged in. The second one also works with HomeKit.

    https://www.aliexpress.com/item/1005005797346608.html

    https://www.aliexpress.com/item/1005002345917446.html

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