AL2500 Precision Breathalyzer with Simple Operation and Professional Accuracy | DOT and NHTSA Approved | No Mouthpieces Necessary | FDA 510(k) Cleared

Works as described and handy if you have a blow and go on your vehicle.

I bought three of these for use with different people groups and they work great. My one complaint is the maching takes about thirty seconds to calibrate every time you turn it on. It is definately worth the money if you want to know if someone has been drinking or if you want to know your BAL.

This is certified for use by law enforcement, which I found convincing. It has a single button. You press it, wait 30 or so seconds while it warms up, then when it's ready, you blow into it for 3 seconds and it gives you an accurate BAC. Great deal, I think.

I get different readings every time. This is true within seconds of one reading. The range it was differing by was very large as well. I wouldn't recommend anyone buy this product.

Good, basic alcohol analyzer for infrequent individual or very small group use. The lack of both a replacable sensor and tube to better direct breath at the sensor would be cause for concern in a $100 unit, but for about $40-$45 is an acceptable limitation.The readings can vary ~40% to 50% depending upon how forcably one blows at the sensor hole and how long since last drink with alcohol was taken. Following the directions and waiting 20-30 minutes seems to stabilize the reading a lot.For our church group, having a alcohol analyzer that is readily available for random tests with teenagers who should be having ZERO alcohol, is more deterrent than anything else.

My girlfriend was a binge drinker with a DUI 17 years ago; so she can't afford another and the cops, I've found here, work in two man teams to entrap drivers... so as I say "Blow before you Go".. it could save you from deep trouble and $5000 lawyer's fees.

Tricky at first; fun thereafter - directions were unclear but once you realized that this needed to be "reset" for 20 some seconds it was fun. I would not suggest using this to determine your legal sobriety as the measurements are not perfect.

It seems to work, but also seems to give readings that are high relative body weight and glasses calculation.If you do it 3 times in a row it will give you 3 different readings.Never have confidence in what it tells me.