Compressed Air Flow Transmitter (1/2″ line)$895.00 For Testo 6440 Call us for a quote Product Model: 0555 6441 Compressed Air Flow Transmitter (1/2" line) quantity Add to cart SKU: 0555 6441 Category: Testo Sensors Parts & Accessories Tag: Testo Sensors Parts & Accessories Description Description For Testo 6440 Related products RS 232 data transfer cable 5.9 ft / 1.8 m0 out of 5 $104.00 Add to cart O2 Sensor 0-21.0 vol%0 out of 5 $93.00 Add to cart CO Sensor 0-4000 ppm0 out of 5 $176.00 Add to cart