Inside a wearable ozone meter with alarm.

This fairly expensive unit is designed to monitor ambient ozone levels and sound an alarm and vibrate if they exceed a preset threshold. I'd guess it is intended for factories where ozone is used in processing.
Inside is a fairly standard sensor, possibly based on tin oxide technology, that changes resistance according to ozone level. The case has clearly been repurposed from one designed for up to four separate round sensors. That means the sensor is mounted well inside which slows down the units response significantly unless a flow of air is directed at it.
This unit came from eBay. I was hoping it would have greater sensitivity and resolution at the lower levels for ambient testing, but it seems more suited to detecting higher levels.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
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[@Polite_Cat]

"Please excuse my tummy making noises...... if you're really lucky, you'll hear an EXPLOSIVE sound of.... thunder" Not sure how I thought that sentence was going to end.

[@belyear]

I thought Clive was gonna need an H2S sensor.

[@aterack833]

“A smaller factory” ah yes, a shop if you will, one with a high ambient temperature, sweaty if you will, a sweaty shop...

[@punksci6879]

If you don't have plans for it you should send it to Fran, she was worried about ozone and it's effects on some of the antiques she has.

[@sidewinder15599]

I have one of the original units that case mold was made for! The sensors are for explosive gas, O2, CO, and H2S.

[@jakenkid]

It really cheers me up that Clive is stuck on a bent with this UV/LED/OZONE storyline... 🤣 It's like watching a TV series, but without the stupid drama (as in, there's drama, it's just not stupid drama), and the, '...previously on/next time on...' *CRAP*! Thank you Clive! For being a cool dude fella! 👍

[@benspiers6147]

The meters for testing ppm of dissolved salts and the meters for testing pH in hydroponic nutrients are quite interesting too.

[@Uncle-Duncan-Shack]

That's conductivity. And it takes the solution temperature into account, it's not a trivial matter to measure it.

[@lostjohnny9000]

Would be interesting to see how much ozone your mini UVC tubes are churning out.

[@DoRC]

Self tappers into brass inserts..... Fancy.

[@RFC-3514]

Or, as the penny-pinching department calls it, "the cheapest screws we could get into the cases we already had".

[@ncot_tech]

@Indosarnia Wooden dowel into badly drilled chipboard. A copy of the slightly higher quality version IKEA uses (when they're not wrapping cardboard in plastic to make their products)

[@redoverdrivetheunstoppable4637]

i can't believe chinesium screws can thread brass without breaking neighter the plastic... every time i try to do something like that A) the screw snaps in two pieces and the tip is impossible to take away from the hole B) the screw becomes a dull nail that doesn't thread anymore

[@redoverdrivetheunstoppable4637]

@NSDAP Enthusiast 88 we were talking about threading into bare metal, sometimes i drill holes in like heatsinks to thread a pair of screws for transistors and stuff, you need a bit of force in this case

[@Pickleriiiiiick]

That clip may be more for "bumping" the meter to compare it to a known value gas mix to ensure accuracy.

[@RedRoserade]

I wonder what this meter would read with the Sharp Plasma Cluster. I suppose it would detect Ozone, despite Sharp's efforts to avoid saying it produces any.

[@Phred_Phlintstoner]

That is actually what I was expecting... too bad. I'd have liked to see that.

[@sofa-lofa4241]

@@Phred_Phlintstoner me too, I got a plasma cluster unit and I've split it into 2x2 units on 100% duty cycle with small pc fans, I would be very interested in seeing the Ozone output too0

[@talideon]

The crowd who make this are apparently called 'Shandong Renke Control Technology Co., Ltd.'

[@mysock351C]

And the actual listing: sdrkck.en.alibaba.com/product/62524740078-815779719/RENKE_multi_gas_detector_meter_smart_ozone_gas_test_detector_portable_O3_handheld_gas_analyzer.html?spm=a2700.icbuShop.82.19.47507f710h7IKZ Evidently the little black cover is for calibration and testing, and not for monitoring, for what its worth.

[@DavidAlanGilbert]

​@@mysock351C and: www.renkeer.com/index.php/index/lists/catid/16.html shows the ozone meter but also shows the 4-in-1 variant.

[@markpitt5248]

Ohhh STM32! That is a lot of processing power there.

[@ShinyMajor]

I was shocked when he read 103RCT6. The 103C8T6 is the one you see in everything. That, and the GD32F103 knockoff that actually runs faster

[@nefariumxxx]

It's an enclosure for a 4x multi gas detector for underground mining / confined spaces.

[@David-bs6bv]

The piece for piping gas into it is for calibration, at least on other monitors. A known value of gas is input and you check the accuracy.

[@bigclivedotcom]

I used it with an aquarium pump and it made it much more reactive to ozone in the vicinity.

[@georgescott6967]

Real-time clock and memory - I guess it logs readings for later analysis.

[@bigclivedotcom]

Yes. You can start and stop the logging feature.

[@silasparker]

The CCS811 VOC gas sensor I've used in a project has a similar 48 hour burn-in period and takes 20 minutes to run-in (stabilise) after each power up. The datasheet for the CCS811 describes it a metal oxide gas sensor and it has a built in heater and needs to be provided with temperature and humidity readings to calculate estimated VOC or CO2 levels.

[@pyromen321]

From a shitty test I did with two identical CO sensors, the burn-in didn’t seem to do anything. Maybe it’s just good practice or it strongly affects certain types of censors?

[@telekommotorrad9065]

When Clive mentioned the run-in period, I thought it would be done by an intermediate manufacturer during assembly, rather than the end user.

[@silasparker]

@@telekommotorrad9065 The initial burn-in could be done by the manufacturer if they had time to do it, but the run-in on power up is done each time the device is turned on

[@handlesarefeckinstupid]

Handy for when you are using a Scalextric.

[@Hexalyse]

What is this? I think I'm missing a joke or something.

[@danh6079]

@@Hexalyse No joke, a scalextric is a designated delivery system of ozone, that`s why its so enjoyable for a while, but , when you "get used to the ozone" (or get a bit bored) and racing turns to firing cars at the wall at several "acceptable" speeds. This detector/ alarm will, in effect tell to to stop racing, take a break before you smash all those expensive vehicles and can resume racing when you "calm down from the buzz".

[@Hexalyse]

@@danh6079 hahaha wait so this is a racing car game like Google show me... But I guess the way it works makes it generate lots of ozone? (Corona discharge?)

[@danh6079]

@@Hexalyse Correct sir, The influx of 12v and brushes (on the cars) and speeds of up to 1000 mph (at scale) emit enough ozone to drown small animals such as mice and water voles, any higher levels will certainly turn any sane human into a crazed speed freak, thus the need fro a alarm!

[@Hexalyse]

@@danh6079 hahahahahaha your descriptions are dope! You should be hired to make the advertisement for these toys (we don't have them in France, first time I see this name)

[@bully6877]

Very good Clive. Love your work. Hurry up live stream on Saturday.

[@androiduberalles]

It'd be interesting to see what different ionizer project you have around put out.

[@danielm2142]

That's all well and good but does it detect when someone's singing Dragostea Din Tei nearby?

[@DiaconescuAlexandru2024]

BASARABIA PAMANT ROMANESC !!!!!11111!!11!!!!111!!!!1!!1!!!

[@b3j8]

I like the little blue alarm "eyes" that flash! Like it's saying DANGER! DANGER!

[@ollieb9875]

It is stormy! Cheers boss.

[@Northern5tar]

Hey Clive, it may be you were right on the money with air sanitation. Even more then you thought. Some latest research suggest either a good ventilation system or where it's not possible or have somewhat of a closed system, filtering and sanitation, are far more effective then everything else (social distancing, masks, hand washing etc.) combined. It's all about air and you'd need biolab grade masks to make any difference. Schools are opening up here and there are special teams set up to check and help with the ventilation. All well and good, however in fall and winter students would sit in cold classrooms. (likewise restaurants, theatres, gyms and so on). Having an air purifying system could be very helpful.

[@bigclivedotcom]

It might be better for those kids to sit in cooler classrooms with a warm coat on than in a hot sealed humid environment.

[@jamesthepuerilis]

Hi Clive, found the ozone module on aliexpress for about 35USD, seems to be an expensive item just for the sensor

[@bigclivedotcom]

It's a very specialist sensor. Complex and much lower demand than most others.

[@psirvent8]

UVC lamp: Unbox Trajedy 😂😂 Ozone meter: Unbox Therapy 😉😂

[@twocvbloke]

Now if they could make a version that could detect farts, you could finally defeat the "Whoever smelt it, dealt it" rule and nail the culprit... :P (though usually the culprit is me!!!)

[@PlutoniumJesus]

@Dave Micolichek Your nose won't work for detecting methane because methane is odorless. The flatulence odor comes from various sulfuric compounds like hydrogen sulfide.

[@alexatkin]

@Dave Micolichek Yes but its less polite to stick your nose close to someones arse to check than just waving a sensor discreetly nearby. :p

[@Peter_S_]

The methane sensors work exceptionally well in his capacity. I had a cast off meter from a national lab that was a gas sensor ( www.apollounion.com/en/p-Combustible-gas-sensor-TGS813-182.html ) hooked to a 555. You would turn it on and let it warm up and then adjust a pitch control to essentially set the detection range. You would adjust it for a click----click---click output in clean air and then when held by a farter, the pitch would rise to a couple thousand Hz. Even a couple minutes after the "event" the unit would scream when the sensor was held up against the guilty pants.

[@groovejet33]

they do!.....its called a Massive Conk

[@lukevibertuk]

No need as whoever “made the rhyme, did the crime”...

[@yodaco]

I got the Rain down in St Johns, but no thunder or lightning surprisingly.

[@nsrnsr1987]

Awesome stuff love watching your vids will miss your rambling at the tattoo this year i was meant to be going to it we’ll never been and have said for years i will go but not made it yet and then damn covid came along and ruined it again grr

[@markfergerson2145]

Is there a Rev date on the board(s)? That might tell us how long it took the manufacturer to figure out how to literally hack the case.

[@pdrg]

Seems a lot of processor for a simple sensor?

[@bigclivedotcom]

They probably used an Arduino style base for programming to facilitate reading the sensors and adding a nice display.

[@MetalheadAndNerd]

Maybe even the existing arduino library for the ozone sensor.

[@deelkar]

if you want to convert ppm to µg/m³ the factor is 2000 so 0,1 ppm is 200 µg/m³ however *this is an approximation* and varies with pressure and temperature of the air you are measuring.

[@doctor_gee]

MR-03 on the sensor itself is just a silver sticky label, amazed you didn't peel it off.

[@WaruiKoohii]

I was downloading Microsoft Flight Simulator 2020 while watching this, and the downloader background music vibed surprisingly well with this.

[@gowdsake7103]

Looks at the CE marking and the labels and chuckles

[@anthonywitham2305]

Nice case moding, I hope that's not a production unit! 😁

[@bigclivedotcom]

It is. They definitely made an interesting mod to fit the sensor.

[@WolfmanDude]

So labor intensive! They just manually broke it out with pliers. Instead of just using a die grinder or something

[@Asdayasman]

This whole thing has a feeling of glitter sprinkled over a dog turd. Fancy box, mangled insides, random chinese component on a universal board, _self tappers into brass_ like what. I rate this "I paid too much" out of ten.

[@bdf2718]

Common (cheap) silicone sealants/adhesives emit ethanoic acid (aka acetic acid, aka vinegar) when they cure. Not good for sensitive components. Or even non-sensitive components if they have fine leads. Silicone polishes and lubricants creep everywhere (almost like superfluid helium). It poses a problem if it creeps its way onto relay contacts, where the arc as the contact opens turns it into insulating crud. Used to be a standard problem in photocopiers. People polished the glass and many months later it worked its way onto relay contacts. Not a problem with mil-spec relays in hermetically-sealed metal cans, but ordinary relays have big problems.

[@RinkyDinkElectronics]

That Winbond IC is a 16Mbit SPI flash memory chip

[@eDoc2020]

Indeed. Much more than needed for some calibration data. I also presume the MCU has built-in program memory, maybe the external flash is also used to store some graphics?

[@hamjudo]

It is for logging the readings.

[@cookinitmax]

I KNOW NOTHING ABOUT THIS STUFF NOTHING YET I STAYDED AND WATCHED YOU TALK TRYING TO LEARN LOL I LOVE HOW YOU LOVE THE STUFF YOU Talk ABOUT. I bought a ozone machine so I can clean out my room the air in there and dust mites what ozone tester do you recommend for someone who needs to keep it simple to test the safe level to re inter a room, so I won't kill myself.

[@bigclivedotcom]

The simple rule of thumb is that if you can smell the ozone there is too much. But it does sometimes take a long time to clear. I'd recommend just trying to leave as long as possible after the machine has been turned off, before staying in the room for long periods of time.

[@absolutely1337]

Ordered a car ozone generator. Yea. It’s an led with a resistor. Any suggestions on finding a legit one? Everything appeared credible and legit on the eBay site for the seller.

[@gavincurtis]

Have you tried autozone? Even their online ordering should offer up something that is legitimate with feedback.

[@hobbygaertner420]

The STM32 doesn't fetch instructions from external flash memory.

[@peterg.8245]

Clive followed the white rabbit way down the hole on UVC/Ozone! O2 sensors are equally painful. Hydrogen Sulfide/Sulfer Dioxide will destroy most except Zirconium Dioxide sensors. Used to handle the byproduct from desulfurization of diesel fuel. I specified such a beast for a thermal oxidizer for IOC in northern India.

[@Trollverwalter]

15:13 @bigclivedotcom, is it a vibration motor on the right side?

[@bigclivedotcom]

Yes. It vibrates when it reaches the alarm threshold.

[@stridermt2k]

So shady but still very interesting. I like the case.

[@Blitterbug]

That does indeed look as if it's based on a multi-sensor design. I'd guess CO, domestic gas, and a couple of others. But I don't think the O3 sensor in this model could be combined with other toxicity sensors due to any exposure apparently degrading it, if I understood Clive correctly. So a sort of Swiss army knife of a toxicity meter, in it's full form...?

[@ncot_tech]

Did it not occur to them to just rotate the sensor board 90 degrees and use a shorter wire? Or is this being built from off the shelf components bodged together? I'm sure I've seen that screen and buttons PCB in a cheapo DSO before.

[@beamer.electronics]

Then they could've spent that saving on some properly threaded case screws ;)

[@cocusar]

it's nice to see an ST micro being used on these devices rather than the obnoxious 8 pin MCUs or the dreaded bare dies on resin blobs

[@thomasherzog86]

i wonder if you could make a video about CO² meters some day. there are quite cheap ones on ebay, but somehow i dont trust they are accurate when others cost more than 100€. Given the importance of CO² for air quality, i dont understand its not more common to measure it indoors.

[@rpavlik1]

Because good sensors like scd30 are super expensive, and also super sensitive to the actions of occupants. Some of these heated tin oxide gas sensors (eg SGP30 which I recently got) can give an "equivalent co2" measurement but that's just computed based on some other gas being measured.

[@gowdsake7103]

C02 for air quality ? ummmm

[@Peter_S_]

I've got a Telaire CO2 sensor running in my place and it's SUPER interesting what it shows. You'll probably never want to close your windows all the way again once you see the data. www.digikey.com/product-detail/en/amphenol-advanced-sensors/T6713/235-1373-ND/5027891 $86.20 for one damn sensor.

[@thomasherzog86]

@Dusty 99 know when to ventilate

[@thomasherzog86]

@@gowdsake7103 yes, the concentration of co² in the air is very important and one value for its quality. en.m.wikipedia.org/wiki/Indoor_air_quality

[@otm646]

Is there a version of this equipped with a CO2 monitoring sensor?

[@bigclivedotcom]

Yes. There are a few CO2 monitors on eBay.

[@robinvince616]

I wonder if the sensor's life would be extended if you stored the monitor in a sealed plastic bag? Of course, if the unit slowly outgasses something detrimental, that could make it worse.

[@xxTyphoid]

650k LETS GOOOO!!!

[@Watch-Crazy]

Good evening Sir, I hope you are well! I'm afraid this is off topic however potentially an interesting thought? Can/do smartwatches short circuit when worn on a sweaty salty wrist. Most have exposed copper charging prongs on the back. Could potentially be a flaw in the design?

[@bigclivedotcom]

They will have been designed with that in mind. If there was current flow to skin they would cause a rash where the contacts are.

[@Watch-Crazy]

@@bigclivedotcom okay, that makes sense. Thank you!

[@Watch-Crazy]

@@bigclivedotcom Howdy, I just ran a search on Google and it seems many people are getting burns and rashes from there smartwatch charging ports...

[@Pickleriiiiiick]

I wear 4 head meters for work. No ozone but I'm sure it's about the same inside, minus being intrinsically safe.

[@BRUXXUS]

Interesting that the data sheet mentions it needs to be heated/enabled for 24-48 hours to sort of "break in". I also think it's pretty interesting that they just hacked out part of that plastic case to make it fit....which seems.... janky... yet somehow, the boards all fit inside perfectly. Weird...

[@pyromen321]

I got a large assortment of gas sensor modules modules a couple months back. All of their datasheets say to run them for 48 hours in clean air before use. Not sure why, though. I compared one CO sensor I heated 48 hours with an identical one I heated for 10 minutes, and they gave about the same readings and had about the same response

[@koolaidman7589]

Possible outgassing of the material?

[@stevetobias4890]

A wearable sparking arc generator for potential gas environments, did I hear that right? Talk about a walking fuse for the big kaboom (there's meant to be an earth shattering kaboom) 😄

[@andymouse]

STM32....very capable MCU.

[@dcallan812]

I hope the weather was dark and stormy 👌👍🤦‍♂️

[@bigclivedotcom]

That's part of the reason I like dark and stormy's. They fit the islands normal weather.

[@scratchdog2216]

Let us know how high you can make it read.

[@Hexalyse]

Would be fairly easy to max out with any UVC lamp that generates ozone. Once at 10ppm, it will not go higher.

[@RomanoPRODUCTION]

BligClive now I will have to buy one tester to see how much a UV tube produce ozone and how well UVC LEDs destroy the ozone.... :)

[@truthseeker3907]

Thumbs up!

[@PS-vk6bn]

Why does it have an additional battery 3.3V lithium battery?

[@bigclivedotcom]

It has a clock and memory backup cell and a rechargeable operation cell.

[@stevenspmd]

That's definitely not from Pound Land!! :-)

[@bigclivedotcom]

It definitely isn't.

[@beamer.electronics]

Fun aside for a moment: This level of construction is appalling, considering it's on the open market and for sale. A ten-year-old child could do better (a lot better). I've stopped products vastly better than this - simply because the cost of doing it properly and obtaining compliance outweighed the product's financial value. If you get this wrong - you can be taken to court! We need to stop buying this rubbish, pay a little bit more, make it in our own countries and to some meaningful quality. Also, there needs to be some form of open compliance so that products of value can be brought to market without us spending 10s of thousands. It's plainly obvious listening to you Clive and these comments that we have the talent and it's shameful our hands are tied behind our backs - while others get away with it. I'll also get off my soapbox now :) Great video, thank you.

[@danh6079]

Dear Big Clive, I have watched for many moons now. Please stop with this sensibility and BLOW SOME SHIT UP again.

[@stuarnold7338]

Looks like they've poorly repurposed the case for a 4 head GDU. I use the Honeywell GasAlertQuattro which has a far more substantial case and has sensors for Combustible gasses, Oxygen, Carbon Monoxide, and Hydrogen Sulfide.

[@groovejet33]

Things worthy of note..........Sadam Hussain was a lovely man, he loved making vegetables out of Lego

[@ianspaintpot]

hay clive it would not be unboxing theripy if it did not come in a box in the first place

[@arrank3681]

Clive I've got something I don't think you've ever opened and done a review off I'd like to send you it can I mail you someway?

[@zenhypnotic]

Arran Kyle he had a P.O. Box on his website and in some video descriptions

[@arrank3681]

@@zenhypnotic thanks il have a look

[@millomweb]

11:33 Pin 2 (DAC) 0·4 - 2·0V - isn't that the standard range (4-20V) divided by 10 ?

[@Peter_S_]

4 to 20 is typical for current loops but that's 4ma to 20ma. If you put a 100Ω resistor in that current loop you get 0.4V to 2.0V across it.

[@millomweb]

@@Peter_S_ Is that what it was :) 30 years is a long time to remember such things to that degree of detail :)

[@Peter_S_]

@@millomweb It's one of those things that if you don't use it in work or serious projects, it's an unnecessary detail. Good spotting on the 4 to 20 range!

[@millomweb]

@@Peter_S_ It was back to my BTEC college days ! I wondered why MIDI came to mind - now I remember - that's a current based control system ! I've a 1980s computer port specification book and it includes MIDI. USB wasn't around then - nor HDMI, Firewire - lol - or even the 'WiFi port' !

[@morelenmir]

You mention this was quite expensive, but the build quality is horrible. I hope it wasn't _too_ expensive!

[@bigclivedotcom]

It was expensive my my standards, but a lot cheaper than the high profile industrial units.

[@welshwisdom]

Where can I buy a real ozone generator from? As well as a real safe UV lamp 🔦 please thanks

[@ybunnygurl]

Buy a ozone generator for cpap cleaning. You can find them on Amazon, and for UV, buy one that's a Florent tube. Then do the banana test.

[@rpavlik1]

Note that a real sanitising UV light is definitely not a safe uv light.

[@mrb692]

rpavlik1 I want a mercury discharge lamp with soda glass (which blocks UV) because that blue is just so pretty. Give me those visible wavelengths, I don’t give a hoot about the UV

[@welshwisdom]

@@mrb692 looking for medical reasons

[@Wilgara1]

I wonder if Clive's Ancestors were pirates, and seafaring rum runners?

[@millomweb]

Fairly sure the 2 PCBs will pull apart but those pin connectors need a lot of effort to plug/unplug causing high risk of breaking something - so best avoided !

[@someguy2741]

But can it detect farts?

[@sadikrady6066]

ازونومتر مقياس الأوزون فى الهواء....

[@chrisbysize]

1:40 Sorry, but using a PP, PE or PVC as a filter cap is wonderful filter on O3 and reduces it efficiently to O2. The only innert material is PTFE for this purpose. Also the scaling in ppm is a joke. A typical hot summer will not exceed 250ppb = 0.25ppm on average. 3:26 Strong doubts that this little device creates +4 ppm. The egg or cigar like 12V car plug (7€) can barely create 2ppm. The cheap 220V (600mg/h advertise ~30€) can create about 25ppm for a short time (

[@rakpix]

Noticed rkckth.com silk screened on one of the pc boards. This goes to renkeer.com. The enclosure was designed for a 4-in-1 gas detector. Details here: www.renkeer.com/index.php/index/shows/catid/31/id/23.html

[@mcomiskey7]

I call my stepdad the Ozone layer slayer due to the amount of deodorant he uses.

[@NiHaoMike64]

@Dave Micolichek The old spray type contained CFCs.

[@Mark1024MAK]

Dave Micolichek - CFCs were actually phased out between 1991 and 1996 (except for a couple of special applications). Don’t know where you got 1970 from.

[@arcadia1701e]

Can hear the super high pitched scream it makes while on on the video! ouch my ears!

[@eDoc2020]

I can hear TV-range high pitches fine in person but not on KZbin. Maybe my headphones suck at high frequency? I just created some full-amplitude 15.7 kHz in Audacity and could barely hear anything. It must be my headphones.

[@user-qz5it8nt1l]

cool

[@matthewmiller6068]

Thunder and lightning? No way I would hear it over the thunder and lightning waterfall of rain where I am...

[@AnthonyChopra]

2:43 very high pitch noise

[@--Zook--]

It's not a big clive video without a superficial hand wound.

[@electroniquepassion]

👍

[@nickb3488]

they always make these things complicated and idk why

[@David_11111]

yay

[@Polite_Cat]

Interesting, but with how amateur it's manufacturing, im worried about it's accuracy..

[@bigclivedotcom]

Without a lab grade calibrated meter it's hard to get an idea of how accurate this one is.

[@RFC-3514]

The case was probably designed for this: www.renkeer.com/index.php/index/shows/catid/31/id/23.html

[@bigclivedotcom]

It looks like it is one of their units:- www.renkeer.com/index.php/index/shows/catid/32/id/25.html

[@RFC-3514]

@@bigclivedotcom - Yep, I found the O3 one first then just checked if they had anything for 3 or 4 gases, and, surprise, it uses the same case.

[@Vacublaster1]

Looking on eBay, there are many better-made devices around the same price as this one.

[@bigclivedotcom]

For ozone?

[@chillybrit2334]

Why does this thing exist? A wearable O3 monitor. Is there some environment where O3 is a health hazard other then Clive's abode when he turns on all the ionizers and UVA lamps at once? Genuine question from ignorance- why would anyone need a wearable ozone meter?

[@bigclivedotcom]

It's for factories that use ozone in their processes.

[@chillybrit2334]

@@bigclivedotcom Thanks :)

[@walkingdead171]

Yes residential HVAC systems are poisoning u with UV-C ozone generation

[@chillybrit2334]

@@walkingdead171 Good thing I just have resistive electric heaters and for cooling I open a window or two by the sounds of that :D One the benefits of living in a temperate location with no extremes either way. There are of course many many downsides to living in such a location - mostly societal though.

[@jamesbenson7462]

Jesus just wanted to know if it works no idea

[@astrixistheman]

I hope that thing doest cost a heap. Its cheapy garabage :)

[@millomweb]

From PCB: www.rkckth.com/index.html offers English website: www.renkeer.com/index.php/index/shows/catid/32/id/25.html Ozone meters and detectors - RS-MG41-O3 - RENKE Shandong Renke Control Technology Co., Ltd.

[@robburdack4361]

i wish they had somthing like this that was quiet cheap for oxygen concentration ... as someone useing an oxygen concentration you always question if the machine is putting out the right amount of purity ... but 160 aud is a little more then worth imo

[@Slikx666]

Does it detect um, er, bum gas? 😜

[@bigclivedotcom]

They do make a version that would detect that.

[@Slikx666]

@@bigclivedotcom Then I can prove it was my mum and not me. 👍😷

[@Peter_S_]

@@Slikx666 You need one of these apparently: www.digikey.com/product-detail/en/klein-tools,-inc/ET110/1742-1250-ND/7387408

[@herosstratos]

Does include explosive gas and H2S: www.renkeer.com/index.php/index/shows/catid/31/id/23.html

[@hellishinc]

Hey look, it's an arduino! www.arduinolibraries.info/architectures/stm32 Not a bad little chip. Quite cheap too.

[@bigclivedotcom]

It wouldn't surprise me if many of these types of meter used the arduino system to make designing a nice display and interfacing with the modules easy.

[@full_time_motorhome]

I was going to ve a complete nob head and try and laud praise on a video I haven't seen yet. But there are comments from 6 days ago and the video was released 2 mins ago. Am I in the twilight ozone?

[@MrHack4never]

Patreon supporters

[@fenceup07944931177]

in other news The Blackview 9900 pro, should be getting an upgrade to Android 10 next month.

[@bigclivedotcom]

So far I like it a lot. Much slicker than the CAT.

[@fenceup07944931177]

@@bigclivedotcom I'll like better with android 10 on it😀

[@someguy2741]

For god sake nobody buy this kind of meter for anything mission critical.

[@walkingdead171]

HVAC companies going down !!

[@WSStuff]

damn i'm early. 19 comments?