NJK Precision Air Flow Management Products.

Save energy while improving comfort, health and workplace productivity with outdoor air monitoring sensors from NJK Precision.


Patented Technology

Our patented air sampling technology…

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Accurate and Reliable

NJK Precision sensors are accurate and reliable with a ~0.5% lab accuracy and ~2% installed accuracy.

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Stainless Steel Assembly

Our rigid stainless steel assembly is engineered to maintain accuracy and ensure reliability.

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Thin-film Resistor Sensing

With a replaceable thin film resistor sensing module, …

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Easy Installation.

With no existing duct removal required.


About NJK Precision


NJK Precision is a division of Von Weise LLC, Powering industry through innovation. Today NJK Precision is committed to an entirely new way of doing business through a powerful combination of solutions, selection and support. Engineering expertise and innovative thinking drive Von Weise to improve products and services for our customers, assuring the highest quality products at the most competitive cost.