Testo 350 CO2 IR Replacement Sensor 0 – 50% Testo 350 CO2 IR Sensor 0 – 50% Call us for a quote Category: TESTO 340 & 350 Replacement Sensors Tag: Testo CO2 sensor IR 0 - 50% Related products Testo 340 & 350 NO Replacement Sensor (Low Range) (0-300 ppm)0 out of 5 $868.00 Add to cart Testo 340 & 350 CO Replacement Sensor (0-10000 ppm H2 compensated)0 out of 5 $870.00 Add to cart Testo 340 & 350 CO Replacement Sensor (Low Range)(0-500 ppm)0 out of 5 $869.00 Add to cart