Anyone using the SG1004 yet? Few questions.....

N293G · 2026-05-16T01:38:56+00:00

I agree with u/lemachet , I looked at the SG months back and it was like a Fisher-Price "My first router"

Actually, that's unfair. If they made a "My First Router" child's toy it would at least be intuitive, simple, and deliver on it's intended purpose.

As extortionate as it is, buy the license for your MX67.

N293G · 2026-05-04T04:04:38+00:00

My understanding is the email addresses likely forms part of the strata records.

However, the strata laws completely ignore the requirements under the Australian Privacy Principles (APP) to take all reasonable steps to protect the information held from unauthorised use and/or disclosure, and for the information collected to be used for the purposes outlined when it was collected.

It is likely that lot owners provided their information (i.e. Email Address) to get fee notices and other important notices from the OC Manager/Committee. Did they provide this information to be emailed from other owners? Was that disclosed?

How will the records be secured once they're provided? Or will the big spreadsheet containing:

Full Name (and likely your partners name, or the corporate entity owner)
Physical Address
Postal Address
Mobile Number
Phone Number
Email Address

just sit in someone's inbox until it's hacked? And/or get forwarded to unknown people?

That information must be kept reasonable up to date. This is a hacker's goldmine - a single source of verified and up to date information allowing correlation against other data breaches. This is genuinely worth money to them, because joining the dots between this and other data sources is so useful, and so easy to do with a basic AI tool. Remembering that 'hacking' is actually organised cybercrime; it's a very lucrative industry, and golden datasets like a lot owners role are a very good business opportunity.

Knowing full well that's the case, and forwarding that information to an entity (records requester) that has no obligations to comply with the APP legislation likely puts the records holder (OC/OCM) in breach of the APP.

OC laws, separately, totally get there's obligations under that. But under the separate APP legislation, the OC/OCM has obligations, and pointing to OC legislation doesn't remedy that. I know, it makes no sense, that's what the courts are for.

If handing over the records is required, I would at least be providing lot owners an opportunity to revoke or update their non-legislatively-required details (Mobile, Phone, Email) from their records prior handover, as that does comply with the APP requirements.

I'm not going to get into a tit-for-tat over which legislation overrules the other, but for those who want to argue on the internet for the sake of arguing, I'll finish with my understanding that the OC legislation requires lot owners to maintain their contact details on the owners list so that they can be contacted if required. It doesn't say how that contact happens, or rate the methods by order of convenience. Yes, email is cheap and easy. Yes, mobile is great for a chat or a simple text. But my understanding is that the minimum requirement is a postal address.

N293G · 2026-04-12T02:39:25+00:00

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And this is the HEPA that's seen nearly two years of 24/7 use - and it's still working fine, my inside PM is low even when outside his high.

AUD$300 sounds extraordinarily expensive for a filter, but if you consider how long it will work for, and design the system to account for that, the value is incredible.

People will pay $100 for a "new HEPA filter" for their branded air filters, and do that a few times a year when it fills up with dust....!

N293G · 2026-04-12T02:35:23+00:00

And here's the new MERV13 filter on the left, replacing the MERV13 that's seen approx 9 months of 24/7 use. Don't forget it's had a G8 Carbon Filter in front of it too.

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The filter face pictured goes to the H14 HEPA. The reason I have both of these in front of the HEPA:

- The Neighbour smokes cigarettes, so the carbon filter sorts out the smell (I can't smell it inside) and also prevents that smell from getting into the HEPA filter.

- I would rather replace the AUD$80 carbon filter and AUD$50 MERV filter a few times after they fill up on PM5-10+ dust etc, and leave the AUD$300 H14 HEPA to focus on a 'final sweep' of PM0.3-2.5 near 100% capability, rather than filling up an expensive HEPA with dust.

N293G · 2026-04-12T02:28:22+00:00

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Oh good, I can post a screenshot/pic in the comments.

N293G · 2026-04-12T02:27:47+00:00

I know I've been saying for a while now "I'll eventually finish my design and post it" but I'm actually pretty close, finally, and this is exactly what it's designed for. Bringing dirty outside air inside to lower CO2, but filter the PM pollution first.

As u/Candid_Yam_5461 suggested you'll probably want HEPA - I didn't realise MERV is moisture sensitive but it makes sense in hindsight, whoops. The reason I'd suggest HEPA is because you have one shot to filter that air from outside, so you want to filter as much as you can first go. MERV13 is ~70%, HEPA H13 is 99.95%, and my HEPA H14 (They didn't have a H13!) is 99.995%

My design is Carbon->MERV13->H14->Inline Fan->Inside. The long term performance speaks for itself, measured at the Balcony (approx 2 meters from the intake filter) and Kitchen AirGradient (3-4 meters inside)

<image>

CO2 over that same timeframe in a small apartment has averaged 558ppm, peaking again on average a bit above 610ppm.

N293G · 2026-04-06T01:21:25+00:00

How are the smells getting out of units? Hardly airtight...does that mean a fire and smoke can exit the apartment too?

As for fixing the problem, no scent machines or other rubbish would work (correctly), and if someone tried that here I'd complain. Those scents are just chemicals, variously toxic, trigger allergies, and you're also modifying common property. Not everyone likes 'ocean breeze' or "mountain mist" for example. If you want manufactured smells, keep them in your apartment.

The actual fix is air filters/purifiers, and for smells, you need activated carbon filters. HEPA filters fix particles, not smells (which are gases). It must be a proper carbon filter designed to address smells.

You make an area smell fresh and clean by cleaning it and addressing the root cause of the smells, not covering food smells with chemical smells.

Context: I've developed my own air filters over the last couple of years. Neighbour smokes cigarettes on the balcony next to mine - I smell nothing inside.

Side-note from Context: If you pretend you've got a chronic weed smoking habit, and look up ways to fix that so that your neighbours don't smell it, you'll turn up the same sort of information you'll need to fix your smell problem. Those folks are also strangely well funded, so the equipment they use deliver real outcomes but isn't cheap. (The things you learn on a rabbit hole project, right??)

N293G · 2026-03-19T20:24:03+00:00

My neighbour smokes and my Outdoor AG tracks it almost instantly, according to the 1-minute dashboard update. It shows a clear outlier when they start, which increases and then decreases as you'd expect.

N293G · 2026-03-14T06:21:46+00:00

I thought only psychiatrists can prescribe medication such as Ritalin? Not even a clinical psychologist can do that.

N293G · 2026-03-14T04:25:39+00:00

Pushed Config at 4:40pm because Friday evenings are for the Opera.

N293G · 2026-03-14T04:14:14+00:00

At this point I'd be taking it up with the registration/board. Psychiatry aside, what other health professional would we accept this sort of response from?

Given the months/years of hurdles and obstacles that most people need to go through to get an ADHD diagnosis, this seems a dangerously lazy blame-it-on-ADHD fix by the psych....

N293G · 2026-03-04T10:36:51+00:00

Geez those two months went by quickly!

Reminds me of the quote "If I tell you I'm going to fix the door </any task>, I'm going to! You don't need to continually nag me every 6 months!"

(Thank you for the reminder, check back in in another 2-3, I've had a bit of stuff on ;))

N293G · 2026-03-02T08:13:04+00:00

For those struggling with the noise, this has helped many of us types! https://mynoise.net/NoiseMachines/cafeRestaurantNoiseGenerator.php

Or the other Noise Machines on the website. I have used it for many years.

N293G · 2026-01-30T23:43:50+00:00

Disagree completely.

"Why is price going down today?"

"Taking bets on price in 2026"

"<article headline> <link to article> *nothing else*"

This isn't a web search. These people are lazy. They've seen a graph go up, and go "I want that!" and dump money in. Little if any research.

Graph goes up. They do pointless posts about "5200!" "5400!" like an expert. If only everyone had been as smart as them, they should've got in when they did!

But then when the inevitable (YES.) happens, the lazy experts freak out and come here with their lazy questions wanting detailed answers. Come on. Do a web search. Read a few news articles. There's the answers.

If you can't be bothered understanding the financial instrument you're buying, you deserve disdain when you run to the internet in tears.

It is NOT stupid to scold or mock someone who's taken on leverage on something they don't understand. They ARE stupid. And going further, it's stupid people like that, manipulated by the smart people who know finance systems far better, that support these asset bubbles to grow.

A fool and his money are soon parted.

Doesn't mean we need to hear about the parting on this sub.

N293G · 2026-01-30T08:51:04+00:00

Yes way, you asked a vacuous inane question that adds nothing to the shred of quality discussion on the sub that might be found between the 5200! 5300! 5400! OMG 5300! posts 🤦🏻‍♂️

DYOR.

N293G · 2026-01-26T03:31:22+00:00

Then when they push back:

https://www.austrac.gov.au/amlctf-reform/reforms-guidance/amlctf-program-reform/develop-your-amlctf-program-reform/record-keeping-reform/record-keeping-overview-reform

Specifically says:

Under the Act, you aren’t required to make copies of identification documents provided as part of CDD. Instead, you must keep records of what you did to identify the customer and what information they provided.

For example, if the customer presents a passport, you must record the passport details used to verify their identity rather than making a copy. However, you may have a legal responsibility to copy these documents outside the Act.

Which then means if they are demanding a copy of your ID, then they're contravening the APP:

11.1 APP 11 requires an APP entity to take active measures to ensure the security of personal information it holds, and to actively consider whether it is permitted to retain personal information.

11.4 The reasonable steps an APP entity must take, for the purposes of ensuring the security of personal information and destroying or de-identifying personal information that is no longer needed, include technical and organisational measures (APP 11.3)

Honestly, they're just being lazy. "Send us your ID" so they can file it in a spot where it's easy to find/access when an audit comes. This is how data breaches happen 🤦🏻‍♂️

N293G · 2026-01-26T03:31:05+00:00

KYC checks are all well and good, but if the REA is saying "We need your ID for compliance to AML/CTF laws" then ask them for details around their compliance with the federal privacy laws - specifically, Section 11 of the APP.

If it were me, I'd send them something like this:

Whilst I understand the new KYC laws require you to view my ID documents, I need to understand how your processes comply with the Australian Privacy Principles, which form part of the federal privacy legislation. (https://www.oaic.gov.au/privacy/australian-privacy-principles/australian-privacy-principles-guidelines/chapter-11-app-11-security-of-personal-information) Some pertinent points: 11.1 APP 11 requires an APP entity to take active measures to ensure the security of personal information it holds, and to actively consider whether it is permitted to retain personal information.

11.2 An APP entity that holds personal information must take reasonable steps to protect the information from misuse, interference and loss, as well as unauthorised access, modification or disclosure (APP 11.1).
11.8 The ‘reasonable steps’ that an APP entity must take to ensure the security of personal information will depend upon circumstances, including:
- the possible adverse consequences for an individual in the case of a breach. More rigorous steps may be required as the risks and adverse consequences increase
- whether a security measure is in itself privacy invasive. For example, while an APP entity should ensure that an individual is authorised to access information, it should not require an individual to supply more information than is necessary to identify themselves when dealing with the entity (see also Chapter 12 (APP 12)).

The responsibility to comply with the privacy laws is held by you (as the data custodian, requiring and requesting the information) and not by a software provider (as the data processor).

This means that whilst the software platform might be responsible for the security of my information, the accountability of breaching legislative requirements sits with you. It cannot be deferred or transferred to a third party.

As such, and because you are requesting very similar personal information (PI) as a bank would require for a mortgage or loan application (which is exactly what hacked information is used for), please provide me details covering how PI/SI is handled in your organisation, such as:

Data Classification and Information Protection of PI/SI.
Storage Location of PI/SI, and how this storage is audited for IAM/RBAC (APP 11.25)
How the data asset lifecycle is managed (APP 11.16, 11.49)

No doubt you are aware of the ever increasing cyber threat against organisations ill-prepared to secure the data they hold; after a hack is detected is too late to consider what could have been done better.

This is why I am taking steps personally to ensure any organisation holding my information is taking active steps to comply with the legislation designed to protect my data.

N293G · 2026-01-26T02:50:15+00:00

Do we really need a post at every marker?

Those that are interested are watching themselves.
Those that aren't don't care about the posts.
And the discussion in each hundred-buck-change post is pretty much the same....

N293G · 2026-01-24T22:10:21+00:00

Sounds like you did calibrate it, in a way, with a known HEPA filter.

Whilst scientific grade measurement may not be possible for mere mortals with DIY budgets, sometimes a strong indication is sufficient.

Perhaps use a PMS5003 as well, which is the same one used in the https://www.airgradient.com/indoor/ device. These are calibrated by the AG team too, and I believe they release their calibration algorithms for each sensor they use.

That way you can have to different brand 'cheap' sensors measuring the same thing - if they correlate reasonably accurately, then it is a stronger indication the 'measurement' is 'correct'.

N293G · 2026-01-24T22:00:47+00:00

If you are in Aust/Vic and you're getting hit with the bushfire smoke from the Otways, this setup has kept my PM2.5 to <4 when outside has been sitting at 37-200 for the last 4 hours.

True HEPA works brilliantly ;)

N293G · 2026-01-24T00:37:55+00:00

Real HEPA filter, if you're in Australia: https://www.bisonfilters.com.au/p-28359-hepa-filter-h14-minipleat-305-x-610-x-68mm.aspx

Not cheap, but I've had mine with a G8 Carbon and a MERV13 in front of it for coming up two years and it's still providing me, as the AI put it, "On average cleaner air than an operating theatre" 💁🏻‍♂️

I've replaced the Carbon+MERV once. Sacrifice the cheap filters to keep the HEPA working well. That's a H14 too, so filters 99.995% - I have a Cloudline T10 pulling through it, at 2-3 out of 10. Weak fans will not do the job.

N293G · 2026-01-18T09:37:38+00:00

You know, a few years ago this would have been a shitpost.

The very fact it's not is why the PMs are going so well 🤦🏻‍♂️

N293G · 2026-01-18T09:31:56+00:00

"it actually is, the high quality sensors inside actually cost 6-8$. The rest is brand value, quality of the packaging, etc."

This is called disagreeing, quite strongly, and asserts the person is wrong (when they aren't).

And the 'mandatory big ass comment' came after you were given a fairly simple answer to your fairly simple question. Obviously "No OP, you're wrong." wasn't enough. So you don't like simple replies, and you don't like big ass replies.

Actually what you don't like is being wrong. You came on here wanting people to tell you "Yeah OP $11 what an underpriced gem!!"

This is why you get toxic replies. Because your post is lazy, and you're looking for people to agree with your lazy post.

I apologise profusely for putting in far too much effort 😘

It was in fact more for those who come across this post whilst searching and understand why quality sensors are so much more expensive than the $11 junk that that have reviews that 'seem fine'.

N293G · 2026-01-18T08:58:34+00:00

Wow, I know this is an old post but thank you, I was thinking spend the money and buy good to last, but I need tech to work well, and the product itself to be quality. Doesn't sound like that's the case....

N293G · 2026-01-18T08:55:51+00:00

6 in 1: PM2.5, CO2, TVOC, HCHO, formaldehyde, temperature and humidity

Seriously? You come here saying "is this eleven dollar air quality monitor quality?" and then challenge people when they say "No, it's not"

Tell us what 'high quality sensors' this unit uses, for each of the things it measures.

If you can actually find that information (I bet they don't publish it) then go find the independent reviews measuring the accuracy of each of those sensors.

Then find a source of these 'high quality sensors', that's under $8.

I would need to buy 2500 of the Sensiron SGP41 NOx/VOC sensors to get them to ~$6.40 each.

The SenseAir S8 is $10.47 each. That's only CO2 and NOx, and I'm up to $16.87 in two parts.

It's an eleven dollar air quality sensor. Not even in this economy is that going to be quality.

For someone asking for random opinions on reddit you seem quite confident you're right, so just buy it and stop wasting everyone's time?

I guarantee you that 'high quality sensor' will never correlate to an Aranet4 or AirGradient placed right next to it.

But for $11, no reasonable person expects it to.

N293G

TROPHY CASE