SPARROW is a product of Eco Sensors, a Division of KWJ Engineering Inc.

Eco Sensors is a premier designer of low-cost ozone sensing and gas detection instruments for industrial settings and personal protection.  Our low-cost and user-friendly products have been serving the need for worker safety in Ozone and gas detection since 1992.  KWJ Engineering acquired Eco Sensors in 2008 and led Eco Sensors to become a world leader in ozone and gas detection equipment.  The brand Eco Sensors now provides advanced gas detection instruments to help workplaces comply with industry standards, provide environmental analysis for industrial settings, and ensure worker safety with personal protection devices.

Meet our Engineers

For the past 25 years, KWJ has been at the forefront of research in gas detection, specializing in nano-technology and sensor design.   In addition to the Eco Sensors products, KWJ provides engineering services and custom product design for various applications in industrial, personal, and IOT.  Our diverse team of engineers is what separates KWJ from other manufacturers.

Read more about our team at:  www.kwjengineering.com

Joe Stetter – President / CTO

Mike Carter – Director of Research

Mel Findlay – Senior Principle Engineer

Mitchell Lee – Mechanical Engineer

Bennett Meulendyk – Senior Electrical Engineer

Gavin O’toole  – Firmware Engineer

Vinay Patel – Senior Sensor Engineer

David Peaslee – Senior Metrology Engineer

Our history in CO detection

Our history in CO detection

Pocket CO - 2007

KWJ Engineering has been manufacturing carbon monoxide devices for industrial settings since 1993, products that are still at the heart of our business.  For the past ten years, the Pocket CO has been trusted by industry professionals as a small and reliable option for CO safety.