Digital Breathalyser in store at Tesco Lakeside scanning at £4
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Digital Breathalyser in store at Tesco Lakeside scanning at £4

56
LocalFound 24th Dec 2017
These were marked on the shelf at £8 (and £7.50 at another location in the same store - Tesco Extra Lakeside) but scanned at £4. Bargain! Not sure if the official price or if national but I’d have expected an extra zero on the price.
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Complete waste of money. You’re a fool if you think these things match the accuracy and quality of official police kit which cost £££’s.

If you have any doubt you’re over the limit, be it the same day or the day after, then you most likely are.

I feel that common sense is a rare commodity these days.

Merry Christmas all
Tell me to bore off, just don't drink and drive.....
56 Comments
Only up to 0.19 so if it's more than that does it max out and just say 0.19
how accurate are these
No point getting 1 of these as im sure during the xmas upto new year period there wil b plenty of police officers going around with 1 of these
barkinglama28 m ago

how accurate are these


Apparently not very if they are scanning at £4
howbord5 m ago

Apparently not very if they are scanning at £4


was wondering if they have a large disclaimer - don't sue us if you get done for drink driving even though our device told you that you were OK to drive hmmmmmm
Complete waste of money. You’re a fool if you think these things match the accuracy and quality of official police kit which cost £££’s.

If you have any doubt you’re over the limit, be it the same day or the day after, then you most likely are.

I feel that common sense is a rare commodity these days.

Merry Christmas all
rich_198615 m ago

Complete waste of money. You’re a fool if you think these things match the …Complete waste of money. You’re a fool if you think these things match the accuracy and quality of official police kit which cost £££’s.If you have any doubt you’re over the limit, be it the same day or the day after, then you most likely are.I feel that common sense is a rare commodity these days.Merry Christmas all


This one maybe but a more expensive relatively accurate one not so. As long as you build in a margin for error yourself then could be a very good investment. 78 miligrams would be legal but 85 not yet I doubt there would be any difference in driving ability. Clearly that would not be true for higher amounts.
rich_198621 m ago

Complete waste of money. You’re a fool if you think these things match the …Complete waste of money. You’re a fool if you think these things match the accuracy and quality of official police kit which cost £££’s.If you have any doubt you’re over the limit, be it the same day or the day after, then you most likely are.I feel that common sense is a rare commodity these days.Merry Christmas all


"If you have any doubt you’re over the limit, be it the same day or the day after, then you most likely are."

The problem with that statement is that those who have had a few and decide to drive clearly have neither doubts nor 'common sense'.

"I feel that common sense is a rare commodity these days."

'Common sense' is a concept which, in reality, doesn't exist.
afroylnt8 m ago

This one maybe but a more expensive relatively accurate one not so. As …This one maybe but a more expensive relatively accurate one not so. As long as you build in a margin for error yourself then could be a very good investment. 78 miligrams would be legal but 85 not yet I doubt there would be any difference in driving ability. Clearly that would not be true for higher amounts.


What margin of error? There's no safe way of knowing. The police versions are accepted for evidential purposes as they have an important piece of paper that goes with them - a calibration certificate.
qbs7 m ago

What margin of error? There's no safe way of knowing. The police versions …What margin of error? There's no safe way of knowing. The police versions are accepted for evidential purposes as they have an important piece of paper that goes with them - a calibration certificate.


The margin of error would be down to the results from your own testing and reviews/specification of the product plus the price you paid for the breathalyser.
Tell me to bore off, just don't drink and drive.....
Flubbermother12 m ago

Tell me to bore off, just don't drink and drive.....


Exactly.
qbs3 m ago

Exactly.


I think the point of these are not for the day you have been drinking but the morning after.
Everyones metabolism is different with alcohol
afroylnt54 m ago

This one maybe but a more expensive relatively accurate one not so. As …This one maybe but a more expensive relatively accurate one not so. As long as you build in a margin for error yourself then could be a very good investment. 78 miligrams would be legal but 85 not yet I doubt there would be any difference in driving ability. Clearly that would not be true for higher amounts.


What!? At 78 milligrams of breath I would expect you to be dead, so you wouldn't be driving!

The limit is 35 micrograms (22 in Scotland) which is 0.035 milligrams.
If you feel like you need to use one of these before driving, just don't drive.
GAVINLEWISHUKD17 m ago

What!? At 78 milligrams of breath I would expect you to be dead, so you …What!? At 78 milligrams of breath I would expect you to be dead, so you wouldn't be driving!The limit is 35 micrograms (22 in Scotland) which is 0.035 milligrams.



Got the figuers from a quick google lookup on a phone.
In England, Wales and Northern Ireland, the legal alcohol limit for drivers is: 80 milligrams of alcohol for every 100 millilitres of blood in your body. 35 micrograms of alcohol for every 100 millilitres of breath. 107 milligrams of alcohol for every 100 millilitres of urine.

However you can surely follow the point I am making. Going from slightly under to slightly over does not make a real difference to driving ability but the law has to set a specific level. With a reasonable breathalyseryou you can make sure you are legal to drive; of course only you can say it you feel fit enough to drive irrespective of your reading.
I've got a more expensive one than this. I've used it at lunchtime the following day when I felt absolutely fine only to find myself close to the limit. I wouldn't chance it because of that, so for those saying use common sense, think again.
I wouldn't trust these as far as you could throw them I bought the same one off amazon last year, just for the morning after, But as you do when your pi**ed with your mates we tried it and all of us passed even with 8 pints of San Miguel down us!
Just get the proper disposable ones at least the're guaranteed accurate.
Edited by: "leviticus71" 24th Dec 2017
I have been a breathalyser engineer for over 33 years having worked for the two main UK Police suppliers of evidential breath testing equipment.
We have tested these 'Toy' Breathalysers against our Police evidential equipment, the results at times are quite frightening, and far from accurate and consistent. Please, anyone thinking of buying one of these, think twice ! They are cheap for a reason. Buy for a children's Christmas stocking, not for use as something as serious as drink driving !
Smadmad1 h, 17 m ago

I think the point of these are not for the day you have been drinking but …I think the point of these are not for the day you have been drinking but the morning after.Everyones metabolism is different with alcohol


That makes no sense whatsoever. The point of these is to make money off idiots who could end up killing somebody (hopefully, only themselves) after believing the results obtained from junk like this.
afroylnt1 h, 45 m ago

The margin of error would be down to the results from your own testing and …The margin of error would be down to the results from your own testing and reviews/specification of the product plus the price you paid for the breathalyser.


So you're going to buy a certified bottle of calibration gas are you?
sussexdaz11 m ago

I have been a breathalyser engineer for over 33 years having worked for …I have been a breathalyser engineer for over 33 years having worked for the two main UK Police suppliers of evidential breath testing equipment.We have tested these 'Toy' Breathalysers against our Police evidential equipment, the results at times are quite frightening, and far from accurate and consistent. Please, anyone thinking of buying one of these, think twice ! They are cheap for a reason. Buy for a children's Christmas stocking, not for use as something as serious as drink driving !


How do you rate the electronic AlcoSense ones? I don't see the usage of these to promote driink driving but to stop someone driving who whilst they feel fine to drive, are actually just over the legal limit.
qbs7 m ago

So you're going to buy a certified bottle of calibration gas are you?



The better specified the product the smaller the margin of error would need to be. However even for a good product I would still want to be 10% under the legal limit to drive.
qbs13 m ago

That makes no sense whatsoever. The point of these is to make money off …That makes no sense whatsoever. The point of these is to make money off idiots who could end up killing somebody (hopefully, only themselves) after believing the results obtained from junk like this.

What's the alternative getting up the next morning and just driving because someone feels ok. If this prevents a small amount of people driving over the limit the next day I think these are good things. I for one don't drive the next day but alot of people will
Smadmad12 m ago

What's the alternative getting up the next morning and just driving …What's the alternative getting up the next morning and just driving because someone feels ok. If this prevents a small amount of people driving over the limit the next day I think these are good things. I for one don't drive the next day but alot of people will


It's an unreliable device that could lead somebody to believe they're fit to drive when they're not. I doubt if you'd be so keen if they ran you over.
Smadmad13 m ago

What's the alternative getting up the next morning and just driving …What's the alternative getting up the next morning and just driving because someone feels ok. If this prevents a small amount of people driving over the limit the next day I think these are good things. I for one don't drive the next day but alot of people will


The alternative is not to drive. Very simple. If you need to drive tomorrow morning, don't drink tonight. Easy.
afroylnt23 m ago

The better specified the product the smaller the margin of error would …The better specified the product the smaller the margin of error would need to be. However even for a good product I would still want to be 10% under the legal limit to drive.


I have extensive experience of testing/analytical equipment similar to this. The instruments I used were tested and calibrated weekly using certified calibration standards. That was well within the manufacturers recommendation. They were also proof tested prior to use daily, again using a certified calibration standard. Instruments can fail/drift at any time and it was surprising how many errors were picked up on daily checks.
These were £1000+ instruments. Would you really trust something costing you £4?
afroylnt30 m ago

How do you rate the electronic AlcoSense ones? I don't see the usage of …How do you rate the electronic AlcoSense ones? I don't see the usage of these to promote driink driving but to stop someone driving who whilst they feel fine to drive, are actually just over the legal limit.


The problem comes when it reads low and says your under the limit, when in fact your over the limit. Another problem is these may display your under the limit, but your blood alcohol is rising as more alcohol is being absorbed into your bloodstream, so a matter of minutes later you could be well over the limit.
It's frightening on the feedback left for these 'toys' people state they are accurate! How can they tell, we use very expensive simulators, with very expensive certified ethanol solutions, to check the evidential units, and expensive certified gas to check and calibrate the roadside screeners. The Police screeners are required to be checked and calibrated if necessary, every month, these don't !
Smadmad26 m ago

What's the alternative getting up the next morning and just driving …What's the alternative getting up the next morning and just driving because someone feels ok. If this prevents a small amount of people driving over the limit the next day I think these are good things. I for one don't drive the next day but alot of people will


This can work the other way too, instrument displays your under the limit, but in fact could be over the limit. These are not accurate enough.
sussexdaz32 m ago

The problem comes when it reads low and says your under the limit, when in …The problem comes when it reads low and says your under the limit, when in fact your over the limit. Another problem is these may display your under the limit, but your blood alcohol is rising as more alcohol is being absorbed into your bloodstream, so a matter of minutes later you could be well over the limit.It's frightening on the feedback left for these 'toys' people state they are accurate! How can they tell, we use very expensive simulators, with very expensive certified ethanol solutions, to check the evidential units, and expensive certified gas to check and calibrate the roadside screeners. The Police screeners are required to be checked and calibrated if necessary, every month, these don't !



Most of the time people's reading will be dropping if its the morning after. I don't see much of use for it if you have just stopped drinking unless a someone who was going to drive can longer and you need to look at other options.

So how good are the £60-£80 testers? what's their margin for error - have you tested them?

It seems the better AlcoSense ones have a warning that they need to be recalibrated every year and have a count down timer for this. Seems they need to be sent back to the manufacturer for the re-calibration.
Edited by: "afroylnt" 24th Dec 2017
If you think you might use this after a few drinks your an idiot! Just don't drink and drive, it's not worth it.
Morning after, is a possibility as it's a little reminder you might just not be fully cleared......however if your thinking you might need it...then you probably shouldn't drive either.....if it's in your blood then your a liability.

That being said certain European countries 'require' you to carry breath testers. Think France is 2 disposable ones. And they need to be capable of detecting certain levels.
The main electronic components for signal processing in these are the sensor, amplification, analogue to digital conversion, then digital processing and finally display...

All of these are relatively inexpensive components if you look up an suppliers catalogue. In terms of components: I do not imagine that there will be any difference between home and police or medical ones.

The main difference will be that the 'pro' versions will be ruggedised and be calibrated.

If the police devices are not calibrated regularly then there is no guarantee of accuracy. Do the police testers have to be accurate, maybe not so much...after all they back it up with a blood test...

So, this wee tester might be good for testing in the morning after to see if you are way over only as a guide perhaps.

If you are driving have a coffee instead.
Edited by: "scottswaha" 24th Dec 2017
Cold for me.
Don't drink alcohol.
FNEC38 m ago

If you think you might use this after a few drinks your an idiot! Just …If you think you might use this after a few drinks your an idiot! Just don't drink and drive, it's not worth it.Morning after, is a possibility as it's a little reminder you might just not be fully cleared......however if your thinking you might need it...then you probably shouldn't drive either.....if it's in your blood then your a liability. That being said certain European countries 'require' you to carry breath testers. Think France is 2 disposable ones. And they need to be capable of detecting certain levels.



Whilst a £4 unit is likely to be woefully inadequate, many people have a drink and drive; so why not have a unit which protects their licence and keep the roads safer? Morning after is just the time to have unit that tells you when you are legally fit to drive; though you also need to feel fit enought to drive using your own judgment. No point in being legally fit to drive but you don't feel up to it.

Are you really recommending never drink and drive with more than 0% alcohol in the blood? (If you believe this then campaign for a reduction in the legal blood alcholol level) and just how many people do you think stick to that?
Edited by: "afroylnt" 24th Dec 2017
scottswaha40 m ago

The main electronic components for signal processing in these are the …The main electronic components for signal processing in these are the sensor, amplification, analogue to digital conversion, then digital processing and finally display... All of these are relatively inexpensive components if you look up an suppliers catalogue. In terms of components: I do not imagine that there will be any difference between home and police or medical ones.The main difference will be that the 'pro' versions will be ruggedised and be calibrated.If the police devices are not calibrated regularly then there is no guarantee of accuracy. Do the police testers have to be accurate, maybe not so much...after all they back it up with a blood test...So, this wee tester might be good for testing in the morning after to see if you are way over only as a guide perhaps.If you are driving have a coffee instead.


The Police kit does need to be accurate, how would you feel if a loved one was killed by a motorist who passed a roadside breath test due to it reading low, and was allowed to walk, when in fact they should have been arrested and have the full force of the law thrown at them.
Blood is not an option any more, it used to be on borderline results (between 40 and 50 micrograms) until a couple of years ago when this option was dropped, now the EBTI (evidential breath testing instrument) results are used. The EBTI checks itself with a gas check before and after each subject test and is checked with 'wet bath' simulators every 6 months
qbs4 h, 14 m ago

"If you have any doubt you’re over the limit, be it the same day or the d …"If you have any doubt you’re over the limit, be it the same day or the day after, then you most likely are."The problem with that statement is that those who have had a few and decide to drive clearly have neither doubts nor 'common sense'."I feel that common sense is a rare commodity these days."'Common sense' is a concept which, in reality, doesn't exist.


It’s responses like this that actually restore my faith in the future of our race.

Merry Christmas to you Sir
Seems many people on here talking about 'accuracy' haven't realised that carrying a breathalyser regardless of its accuracy is a legal requirement in some European countries. The single use one need two to be carried in case one is used !
At present this is not the case, 'The enforcement of the law making it compulsory to carry breathalysers, has been postponed indefinitely' in European countries.
Thoughtful12 m ago

Seems many people on here talking about 'accuracy' haven't realised that …Seems many people on here talking about 'accuracy' haven't realised that carrying a breathalyser regardless of its accuracy is a legal requirement in some European countries. The single use one need two to be carried in case one is used !

How about just don't drink & drive
zoso13134 m ago

How about just don't drink & drive


By far the best advice!
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