“This is a way to do that in a category that carries the highest profit margin, which is draft beer. And Boston likes its draft beer,” Solomon said.

Indeed, Boston has been a ripe market for the company, which plans to open an office in Boston later this year. That outpost will serve as the company’s New England regional office. US Beverage Net, which launched four years ago, does not disclose revenue. Competitor Bevinco, which markets a beer monitoring system, has a Medford office.

Cambridge-based Grafton Street Pub & Grill owner Patrick Lee installed the US Beverage Net’s system earlier this year. Lee says monitoring beer flow is especially key given the surging popularity of craft beers, which are more expensive than big beer brands.

“You could serve a 10-ounce beer that costs $10, so if there’s a problem with the way that beer is pouring ... those extra ounces mean a lot when you’re talking about costs like that,” said Lee, who also owns the Temple Bar and Redline, both in Cambridge.

A side benefit of the service is that bar owners are able to see which brews are selling the fastest and can make future beer choices accordingly, said Lee, who says business is flat right now.

For Conor Brennan, owner of Somerville, Massachusetts-based PJ Ryans, who installed flow meters earlier this year, it’s all about saving cash.

“It’s an extra tool to save costs,” said Brennan, who said revenue is down about 13 percent over last year.

Draft beer losses—either via faulty draft systems or theft—is a very real problem in the industry, said Charlie Papazian, president of the Charlie Papazian of the Brewers Association in Boulder, Colorado.

“The cost of the monitoring system will not address the problem,” Papazian said. “The owner will have to spend money to educate employees.”