Testo 350 NO Sensor Upgrade Module (0-3000ppm)$1,974.00 Testo 350 NO Sensor Upgrade Module (0-3,000ppm) (1ppm resolution) (H2 Compensated) Call us for a quote Product Model: 0554 2150 Testo 350 NO Sensor Upgrade Module (0-3000ppm) quantity Add to cart SKU: 0554 21501 Category: Testo 350 Emission Analyzers: Kits Sensors Upgrades Accessories & Probes Tag: Testo 350 Emission Analyzers: Kits Sensors Upgrades Accessories & Probes Related products Testo 350 CO2 NDIR (nondispersive infrared) Upgrade Module0 out of 5 Read more Standard Case for testo 350 analyzer & control unit Flue Gas Probe0 out of 5 $552.00 Add to cart Heavy duty case with porting for 350 Maritime in-case operation0 out of 5 $614.00 Add to cart