NTT Electronics, a Japan-based hardware company, is joined in the Series D round for the air quality measuring company by venture firms Focus Ventures, DAG Ventures, and China-based healthcare PE investment fund Mingxin China Growth Fund.

NTT Electronics, a Japan-based hardware company, has helped Picarro, a California-based developer of air quality measuring and maintenance instruments, raise  $7m

NTT was joined in the Series D round by venture firm Focus Ventures, which led the round,  as well as venture firm DAG Ventures, and China-based healthcare PE investment fund Mingxin China Growth Fund.

Picarro chief executive Michael Woelk said: “By focusing on building out a powerful yet simple analytical platform for a broad array of applications for carbon…