SALT LAKE CITY — Bargoers weighing whether they’re sober enough to take the wheel could soon have a tool to help make that decision.

Breathalyzers and similar devices could pop up in more bars across Utah under a coming proposal from Draper Republican Rep. Greg Hughes. The measure is still incubating, but it aims to cut down on drunk driving in Utah.

“It makes good sense,” Hughes said Friday.

Setting up the machines alongside pool tables and juke boxes would especially help younger drinkers who are still learning their limits, Hughes said.

Hughes previously said he was considering whether to require devices in each bar, or just those with infractions, such as serving underage drinkers. He also is considering whether to make it an incentive rather than a mandate. But the forthcoming proposal won’t hold bars responsible for customers who fail a breath test but decide to drive anyway, he said Friday.

Some bar owners hesitate to back the measure, questioning how well the devices read the level of alcohol circling the bloodstream.

To date, night spots that have such meters generally affix them to walls, and patrons often wander over for a laugh. The readings cost about $2 and can usually be paid by credit card.

Hughes said under his plan police would not gain access to any data collected.

Bob McCarthy owns the Garage on Beck, a Salt Lake City bar on a stretch of highway lined with chain fences and smoke stacks.

McCarthy on Friday morning questioned the accuracy of the machines. If customers were to register a lower level of alcohol than they expected, he worries, it could embolden them to drive when they normally wouldn’t.

“Somebody could feel they shouldn’t be driving but the number says 0.08, which is right on the border, so maybe they’ll go and they shouldn’t go,” he said.