Testo 350XL HC replacement sensor 0-4%$1,162.00 Testo 350XL HC replacement sensor 0-4% Call us for a quote Product Model: 0390 0076 Testo 350XL HC replacement sensor 0-4% quantity Add to cart SKU: 0390 0076 Category: Testo Replacement Sensors & parts for Discontinued Combustion Products Tag: Testo Replacement Sensors & parts for Discontinued Combustion Products Related products Testo 350XL/335 & 300 O2 Replacement Sensor0 out of 5 $459.00 Add to cart Testo 350XL CO2 Sensor filter material refill0 out of 5 $230.00 Add to cart Testo 350XL/335 SO2 replacement sensor (0-5000ppm)0 out of 5 $1,112.00 Add to cart