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testo 420 I Balometer Kit with airflow capture hood for large air supplies and returns and swirl outlets I With Bluetooth and optional NIST certification: Amazon.com: Industrial & Scientific
![testo 420 I Balometer Kit with airflow capture hood for large air supplies and returns and swirl outlets I With Bluetooth and optional NIST certification: Amazon.com: Industrial & Scientific testo 420 I Balometer Kit with airflow capture hood for large air supplies and returns and swirl outlets I With Bluetooth and optional NIST certification: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/S/aplus-media/vc/2a693ccd-ff54-4542-9d28-d0b65f32e899.__CR0,0,970,300_PT0_SX970_V1___.jpg)
testo 420 I Balometer Kit with airflow capture hood for large air supplies and returns and swirl outlets I With Bluetooth and optional NIST certification: Amazon.com: Industrial & Scientific
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