Testo 350 CxHy Sensor Upgrade$1,990.00 CxHy upgrade module (methane 100-40,000ppm, propane 100-21,000ppm, butane 100-18,000ppm, 10ppm resolution) Call us for a quote Product Model: 0554 2300 Testo 350 CxHy Sensor Upgrade quantity Add to cart SKU: 0554 2300 Category: Testo 350 Emission Analyzers: Kits Sensors Upgrades Accessories & Probes Tag: Testo 350 Emission Analyzers: Kits Sensors Upgrades Accessories & Probes Related products Testo 350 CO (Low) Sensor Upgrade Module (0-500ppm)0 out of 5 $1,974.00 Add to cart Bluetooth Wireless Upgrade for the New Testo 3500 out of 5 $210.00 Add to cart Testo easyEmissions Software for Testo 300 340 & 350 with USB to mini USB cable0 out of 5 $638.00 Add to cart