Profibus T-piece plug connector ( if used speed 1.5 Mbits/sec no need for the 0554 6683 set)$170.00 For 6681 Call us for a quote Product Model: 0554 6687 Profibus T-piece plug connector ( if used speed 1.5 Mbits/sec no need for the 0554 6683 set) quantity Add to cart SKU: 0554 6687 Category: Testo Sensors Parts & Accessories Tag: Testo Sensors Parts & Accessories Description Description For 6681 Related products CO Sensor 0-4000 ppm0 out of 5 $176.00 Add to cart Testo 340 NO Replacement Sensor (Low Range) (0-300 ppm)0 out of 5 $795.00 Add to cart 206 – storage cap0 out of 5 $22.00 Add to cart