GLENVIEW, IL -- Illinois Tool Works today reported first-quarter revenues at its Test & Measurement and Electronics segment fell 2.1% from a year ago.

The segment recorded revenue for the period of $520 million. Operating income for the segment was $68 million, up from $62 million a year ago. Operating margin rose 120 basis points to 13%.

The unit includes Speedline Technologies, Vitronics Soltec and Kester Solder, among other businesses.

ITW said overall revenues fell 8% from a year ago to $4 billion. ITW updated its full-year organic growth guidance to 0 to 2%, and second-quarter revenue growth of 2.5 to 3.5%.