Regulator SS with integrated rotometer* Call us for a quote SKU: 400554 90242 Category: Testo Sensors Parts & Accessories Tag: Testo Sensors Parts & Accessories Related products NO2 replacement sensor (0-520 ppm)0 out of 5 $1,044.00 Add to cart Handle for plug in thermocouples0 out of 5 $132.00 Add to cart 3.9′ with 13′ stainless braided TC lead 8 pin connector0 out of 5 Read more