Differential pressure probe 1000 hPa (15 psi)$658.00 Testo 445, 510, 511, 512 Call us for a quote Product Model: 0638 1647 Differential pressure probe 1000 hPa (15 psi) quantity Add to cart SKU: 0638 1647 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 NO2 replacement sensor (0-520 ppm)0 out of 5 $1,044.00 Add to cart Testo 350XL/335 CO replacement sensor (0-10000 ppm H2 compensated)0 out of 5 $1,264.00 Add to cart