Teledyne Technologies Inc. on Wednesday said sales growth in its instrumentation division contributed to first quarter results that beat Wall Street’s expectations.

The Thousand Oaks maker of electronic components reported net income of $32 million (86 cents per share), compared with $25 million (68 cents) a year earlier. Revenue rose 15.6 percent to $468 million, with instrumentation-segment sales up 18 percent to nearly $158 million as the company saw increased demand for products used by marine and environmental firms.

Excluding one-time items, Teledyne earned 87 cents a share. Analysts surveyed by Thomson Reuters on average expected the company to report adjusted per-share profit of 73 cents on revenue of $456 million.

The company expects second quarter earnings will be in the range of 76 to 80 cents per share, adjusted to exclude the sale of its piston engine businesses this month. For the full year, adjusted earnings are expected to be range from $3.25 to $3.32 per share.

“Beyond our strong financial performance, the strategic changes over the last several months are even more significant,” said Chief Executive Robert Mehrabian in a statement. “Having divested our piston engine businesses and with the acquisition of the Dalsa (digital imaging business), Teledyne is now truly an electronics, instrumentation and engineering company.”

Shares closed up $2.04, or 4.3 percent, to $49.51 on the New York Stock Exchange.