AlcoSAFE CA10FS Pro Breathalyzer - Police Grade Accuracy - Award Winning

I love this product, I use it mainly for the morning after to check I am safe to drive before getting in the car.Tested it thoroughly over the last few days, a couple of pints of lager and then I blew a .22, had one night out with quite a few and blew .55 so over the limit which I knew but I only drive with a 0.00 so nice to know I am safe to drive.I would recommend this product to everyone who likes a pint with lunch or like myself to check in the early morning that you are safe to drive after a few the night before.

Purchase this for work on the recommendation of our Occupational Health Nurse. Simple to use, easy to understand and practical. Very happy with this purchase, so much so that I ordered a second to use whilst the original is being calibrated (which is required once a year).

The item was cheaply made and gave inaccurate readings. It cost £79 and useless to me. The seller wouldn’t accept a return even though I was extremely dissatisfied. Very disappointing!

I bought this as a guide to when I would be okay to drive following having a drink, and to see how in line my perceptions of when I think I'm safe are accurate or not (I am pleased to say my perceptions were spot on!).After a heavy night at the office Christmas party last night, I woke up still feeling drunk. At 10:30am I did my first test showing RED 0.09. An hour later, I didn't really feel any more sober, and my 11:30am reading was RED 0.07. Leaving it just over another hour, I could tell I was sobering up nicely, and the 12:45pm test showed this as AMBER 0.04. When I finally felt sober enough to contemplate driving I did another test around 3:00pm and was GREEN 0.01. A final text before I ventured out at 4pm was GREEN 0.00.Great to know that my common sense was spot on in line with this device. I will be using it over Christmas to check I'm safe to drive if I have had a drink earlier in the evening (no more morning afters planned until the next office party).Very simple to use, turn it on, wait until it's ready, blow into the tube until the beep stops and check the reading.Carry pouch smaller than expected, as it will only fit the device, and there's no room for any of the blow tubes.

I bought this and it duly arrived the next day, I set it up and followed the instructions to the word. The problem I have is that I have tested myself well in excess of 30 times and had 3 readings?It seems that after waiting for the 99 second count down it says ready, I begin to blow & nothing happens, I am left blowing and the unit simply turns off?Or I begin blowing and then after 4-5 seconds it bleeps and starts the count from 1-5, obviously I cant keep blowing for 10 seconds!Any advise would be appreciated, I have emailed the manufacturer as their seemed to be no contact details in the box and the only other option is to return to Amazon!!UPDATEI made contact with Amazon and I have to say the service was outstanding, they shipped me a replacement unit by express delivery which duly arrived and unlike the first uni, this is working as expected. Thank you Amazon for your swift and decisive action, customer service is difficult for most, however the lady I dealt with at amazon was first class.Prior to contacting Amazon I contacted the manufacturer/distributor via email & I was provided a follow up & I was advised that the unit was likely to be faulty & they provided me great advice & support which lead to its replacement.Overall satisfied with all aspects as from time to time goods are faulty, so it is how suppliers deal with this, & as I say they were all efficient & met my expectations.Thanks

My head is spinning reading the instructions and i haven't even had a drink.First the good news. The unit seems solid enough, although it is a tacky shiny silver finish rather than the designer black model illustrated and therefore it does look a bit like something out of a christmas cracker. But it is easy to use and definitely measures whether alcohol is present on the breath. The red / amber / green alert is potentially very useful. However............units of measurement are of absolutely fundamental importance and this is where it all goes a bit Brahms and Liszt.The device offers to present the results in one of three different formats.These are either as o/oo BAC (g/l); %BAC ; or mg/l and the user selects the one they want to use.Firstly there is no explanation of what these different measures mean.Also the green / amber / red warnings refer not to the legal limit but to an alert level also to be selected by the user.Therefore the user has to understand what is the appropriate alert level that they want to set, and which of the three options are the appropriate units for the limit they want to set. Get that wrong and the warnings are either incorrect or meaningless, with potentially serious consequences.Therefore the instructions are very important, and unfortunately they contain errors and a lack of clarity.So what follows is the essential easy guide that was missing from the instructions......In the Uk the legal limit is 0.08% BAC (blood alcohol content). In France the limit is 0.05%. Other countries vary.This is a percentage measure of alcohol in the blood. 80mg of alcohol in 100ml of blood equates to 0.08%.The user can set an alert level lower than the legal limit for a further factor of safety.Set the preferred units to %BAC, and the limit to say 0.05 and probably all is well. (The units for %BAC are g/dl)But what about the other two options?What is o/oo BAC ? (which is readily confused with %BAC). This is a blood alcohol content measured in grammes per litre g/l.A legal limit of 0.08% BAC equates to 0.8 o/oo BAC.The third option is to refer to measurements in mg/l, however....and it should be made abundantly clear in the instructions but isn't....measurements in mg/l are not measurements of blood alcohol content, they are measures of BREATH alcohol content (with a hidden conversion factor). The equivalent UK limit of breath alcohol content is 35 microgrammes per 100ml = 0.35 mg/ lIf the user selects mg/ l as the preferred units, and tries to set an alert value based on legal limits of BLOOD alcohol then breath alcohol and blood alcohol measurements will have been confused; resultant warnings may be triggered incorrectly, and alerts may not mean what you intended them to mean.Neat device but a lack of clarity in the instructions.Follow the above guidance and then it is probably a very good product.