Parker's tested the breathalsyers shown below and compared the results to an official Home Office Type Approved breathalyser.
Envitec AlcoQuant 6020
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Cost: £500
The only breathalyser that counts in our test. It's used by 20 per cent of UK police forces and has Type Approval from the Home Office.
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Breathalyser 1
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Cost: £3.99
A Parker's tester could get 'do not drive' and 'safe to drive' results in consecutive blows. |
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Breathalyser 2
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Cost: £4.99
The same user could get 'do not drive' and 'safe to drive' results in consecutive blows. *Showed it was safe to drive when the user was over the drink-drive limit. |
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Breathalyser 3
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Cost: £15.99
A more sophisticated device with a digital readout, but it gives a range of results - many of which were above the drink-drive limit, though it indicated it was safe. |
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Breathalyser 4
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Cost: £9.50
Although this unit showed that the user was over the drink-drive limit, the accuracy was out by 42 per cent - a massive error factor. |
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Breathalyser 5
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Cost: £3.99
The same user could get a range of results - many of which were above the drink-drive limit, though it indicated it was safe to drive. |
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Breathalyser 6
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Cost: £4.99
Works on a system of smiley faces: happy for 'safe' and unhappy for 'unfit to drive'. Showed that it was safe to drive when the user was over the drink-drive limit.
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Breathalyser 7
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Cost: £4.99
Warned when the user was over the limit, but the inaccuracy of the reading showed a high margin of error.
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Read the full report here
