Image Sensing Systems, Inc. announced earnings results for the first quarter ended March 31, 2021. For the first quarter, the company announced total revenue was USD 2.979 million compared to USD 3.159 million a year ago. Operating income was USD 411,000 compared to operating loss of USD 275,000 a year ago. Net income was USD 1.131 million compared to net loss of USD 111,000 a year ago. Basic earnings per share from continuing operations was USD 0.21 compared to basic loss per share from continuing operations of USD 0.02 a year ago.