Arrhythmia Research Technology, Inc. reported earnings results for the fourth quarter and year ended December 31, 2017. For the quarter, the company's net sales were $4,539,000 compared to $4,813,000 a year ago. Net loss was $364,000 or $0.13 per diluted share compared to $322,000 or $0.11 per diluted share a year ago. Adjusted EBITDA was $266,000 compared to $89,000 a year ago.

For the year, the company's net sales were $20,103,000 compared to $19,638,000 a year ago. Net loss was $1,355,000 or $0.48 per diluted share compared to $712,000 or $0.25 per diluted share a year ago. Adjusted EBITDA was $825,000 compared to $1,086,000 a year ago.

For the year 2018, the company expects revenue and EBITDA to improve.