Revenues for the quarter were $44.5 million, up 38 percent over last year's revenues for the same period, which were $32.2 million.
Research and development expenses rose to $6.3 million, from $4.7 million during the year-ago period.
The firm's net income rose to $3.7 million, or $.22 per share, a 48-percent increase over last year's $2.5 million, or $.17 per share.
As of June 30, Molecular Devices had $12.5 million in cash and cash equivalents.