Differential pressure probe 100 hPa (+/- 40″ WC)$655.00 Testo 445, 510, 511, 512 Call us for a quote Product Model: 0638 1547 Differential pressure probe 100 hPa (+/- 40" WC) quantity Add to cart SKU: 0638 1547 Category: Testo Sensors Parts & Accessories Tag: Testo Sensors Parts & Accessories Description Description Testo 445, 510, 511, 512 Related products SO2 replacement sensor (0-5000 ppm 1 ppm resolution)0 out of 5 $525.00 Add to cart RS 232 data transfer cable 5.9 ft / 1.8 m0 out of 5 $104.00 Add to cart 5′ probe connection cable0 out of 5 $60.00 Add to cart