Interested in reviews of GTX Protector? It got 4.2 out of 5 stars from our customers. Find specific customer reviews of GTX Protector below. We will appreciate if you also share your experiences with GTX Protector after purchasing.
I tested it using a professional device and the deviation was no more than 0.05 per cent, so it’s great as far as I’m concerned
quite accurate measurement
price-performance ratio
perhaps better than some of the more expensive models
free calibration
It’s a shame it runs on batteries rather than a rechargeable battery
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Jiří, Klatovy
Rated 12/04/2026, variant GTX Protector
Verified purchase
it'll load quickly
price
one time it reads zero, 30 seconds later, 0.2 per mil, I don't know. the morning after the event, he measured 0.5 residual. after an hour and a half, he read 0.9 but I didn't drink anything this morning, weird.
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Daniel, Kolín
Rated 25/01/2026, variant GTX Protector
Verified purchase
The device can be switched on, but its measuring capabilities are zero. Tested 3 hours after alcohol consumption and the result was 0.00 ‰. Since there was alcohol in the blood, I consider the product to be non-functional.
After inserting the batteries, it can be switched on
The instrument measures zero.
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Jan, Rakovník
Rated 22/11/2025, variant GTX Protector
Verified purchase
The impeccable watchdog of personal irresponsibility
accurate, compared to other
almost immediately ready for testing
absolutely easy to use
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Josef, Praha 5
Rated 29/10/2025, variant GTX Protector
Verified purchase - review from a price comparison website
functional, does not need to blow as much as the Sencor
seems to measure more consistently (and less) than the Sencor, so all the better
AAA battery, too bad it is not normally with charging
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Customer
Rated 04/09/2025, variant GTX Protector
Verified purchase
we tried it after a birthday party and it measures well, can be calibrated
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Marek, Havířov 4
Rated 26/08/2025, variant GTX Protector
Verified purchase
For the price, it's a blast, looks good and measures accurately.
low price
Lean measurement
free calibration
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Denis, Praha 9, Vysočany
Rated 26/08/2025, variant GTX Protector
Verified purchase
It measures really great, I tried several tests in a row and the deviations were minimal. For how cheap it is, it surprised a lot.
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Renata, České Budějovice
Rated 22/08/2025, variant GTX Protector
Verified purchase
appearance
quickly ready for blowing
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Kamil, Třinec
Rated 22/08/2025, variant GTX Protector
Verified purchase
Good price
small and fast
Accurate
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