Edge6d ago

A temperature sensor mystery for you.

I have this small hygrometer display and 5 sensors for various rooms around my home. I used to know where all the sensors are.

This picture shows the first 3 and the interior temp/humidity in the house.

I have misplaced sensor 3. No idea where it is, definitely NOT the garage, which would be higher temp/humidity.

So...

The bottom reading is at the display. Top is the (unconditioned) sunroom. Second is a first-level room. Third is the missing one.

I've found no way to track down the sensor. There's no indication of signal strength.

Angry at myself. Looked everywhere.

??

#IAQ

See The AirMay 27

Big News for School Air: GO AQS Launches “GO IAQS for Schools”

At See The Air, we have spent years advocating for a fundamental truth: clean air is a human right, and our children deserve the absolute best protection where they spend most of their day—inside the classroom. That is why I am thrilled to share a massive milestone in global air advocacy. The Global Open Air Quality Standards (GO AQS) has officially launched GO IAQS for Schools, a groundbreaking strategic plan designed to transform educational environments from passive shelters into active, health-protective zones. For too long, policy regarding school air has relied on generic, "check-box" ventilation advice. GO AQS is changing the game by shifting the focus toward health-based performance metrics. The Vision: "Same Air, Same Standards" The core philosophy behind the GO IAQS for Schools initiative is beautifully simple: Same Air, Same Standards. Air pollution and airborne pathogens don't care about geography or economic status. This initiative aims for global adoption, ensuring that children in resource-limited settings are protected by the exact same high-performance metrics as those in the most developed economies. By replacing vague guidance with strict, science-based performance standards, the framework ensures air quality is maintained at levels that protect even the most clinically vulnerable students and staff (such as those managing asthma or compromised immune systems). […]

https://seetheair.org/2026/05/27/big-news-for-school-air-go-aqs-launches-go-iaqs-for-schools/

Kate NyhanMay 22

Hi folks, are you in #Canada? Are you interested in #IAQ #IndoorAirQuality?

Community Access to Ventilation Information can give #CO2 monitors to your organization – library, community group, it's ok if the org is informal.

Measure ventilation! Do #CitizenScience!

Get in touch: [email protected]

Adrian SegarMay 22

Here's an affordable air quality tool for meeting planners. CO₂ meters cost less than $100 and provide a useful proxy for air quality.

https://www.conferencesthatwork.com/index.php/meeting-industry/2021/10/air-quality-tool

#meetings #venues #AirQuality #CO2 #tool #IAQ

dgspsoaMay 22

So spielerisch kann man Menschen für #IndoorAirQuality sensibilisieren.

Bei schlechter Luft fällt der Vogel vom "Zweig", bei guter Luft setzt er sich wieder hin. 😬

(Keine Werbung, ich kenne das Produkt nicht persönlich, finde die Idee aber gut)

https://www.kickstarter.com/projects/birdie-scandinavia/birdie-pro-your-fresh-air-pet

#Lufthygiene
#CleanAir
#IAQ
#AirQualitySystem

Wer mehr zum Thema saubere Luft erfahren möchte, darf sich gerne hier belesen:

https://dagl.de
https://igoe.at
https://airclub.org
https://goaqs.org

GO AQSMay 18

GO AQS Launches “GO IAQS for Schools”: A Global Initiative to Thriving Classrooms

GO AQS (Global Open Air Quality Standards) is proud to announce the introduction of GO IAQS for Schools, a strategic plan designed to transform educational environments from passive shelters into active, health-protective zones. This global intervention establishes a new standard for student wellness by moving away from generic ventilation advice toward enforceable, health-based performance metrics. A New Paradigm for School Health The GO IAQS for Schools plan is built on a "Same Air, Same […]

https://goaqs.org/2026/05/18/go-aqs-launches-go-iaqs-for-schools-a-global-initiative-to-thriving-classrooms/

Show threadPublic Health Action NetworkMay 1
You can watch all the winning videos at the Clean Air Allies website: https://cleanairallies.org/contest/. #cleanairschools #iaq #indoorairquality

Contest – Clean Air Allies
Contest – Clean Air Allies

Jonathan Kamens 86 47Apr 27
We did an admitted students day trip to Suffolk University with Offspring yesterday.
I hung a CO2 monitor from my belt. We were in numerous different rooms, some of them crowded, in several different buildings, and the CO2 never got above 600. Most of the time it was below 500. It _is_ possible to make indoor spaces safe.
On the other hand, on the ½ hour bus ride home the level was over 1,600. 🤦‍♂️ Shitty ventilation on the bus, and the windows all still locked shut from the winter.
#COVID #IAQ
Show threadSeaFury 🦜🍃Apr 27

@mu The Australian National Construction Code Indoor Air Quality Verification Methods was updated in 2022 to include:

OzSAGE provided the following advice on carbon dioxide concentrations in relation to infection risk during the COVID-19 pandemic:
• Around 600 ppm or below is best practice
• Below 800 ppm indicates a low relative risk of infection
• Between 800 ppm to 1,500 ppm indicates a moderate relative risk of infection
• Above 1,500 ppm indicates a high relative risk of infection.

OzSAGE https://ozsage.org/ might have papers.

If you want a copy of the Indoor Air Quality Verification Methods, you can get it by creating an account and searching for it on the website: https://www.abcb.gov.au

HTH!
#IAQ #Covid19

OzSAGE

OzSAGE
VisiblAirApr 23

🎉 The new VisiblAir Model O (2026 Edition) is now available for pre-order!

Designed for connected indoor air quality monitoring in homes, offices, and schools, Model O measures CO₂, particulate matter, VOC, NOx, temperature, and humidity. It also supports Wi-Fi or wired Ethernet, with USB-C or PoE power.

See it here:
https://visiblair.com/products/model-o.html

#AirQuality #IndoorAirQuality #CO2 #IAQ #Sensors #SmartBuilding #HealthyBuildings

PoE Air Quality Sensor with CO2, PM, VOC & NOx | Model O | VisiblAir

Multi-sensor indoor air quality monitor with CO2, PM2.5, VOC, NOx, Ethernet, and optional PoE for homes, schools, offices, and multi-room deployments.

VisiblAir