MSA Gas Detector Sensor: ALTAIR 4XR/ALTAIR 5X, MSA, Carbon Monoxide/Hydrogen Sulfide
The MSA ALTAIR 5X replacement sensor (MPN 10106725) detects Carbon Monoxide (0 to 1,999 ppm) and Hydrogen Sulfide, with a 15-second response time. This sensor is designed for the ALTAIR 5X series gas detector.
SKU 3G-OTH-554422
Need installation or engineering help?
Ask a question
Product Description
The MSA ALTAIR 5X replacement sensor (MPN 10106725) detects Carbon Monoxide (0 to 1,999 ppm) and Hydrogen Sulfide, with a 15-second response time. This sensor is designed for the ALTAIR 5X series gas detector.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the MSA 10106725 sensor used for?
The MSA 10106725 replacement sensor detects Carbon Monoxide (0 to 1,999 ppm) and Hydrogen Sulfide in the ALTAIR 5X gas detector. It is used for personal safety monitoring in industrial environments such as refineries, chemical plants, and confined spaces where toxic gas exposure is a risk.
What are the specifications of the MSA 10106725 sensor?
The MSA 10106725 sensor is a Carbon Monoxide/Hydrogen Sulfide replacement sensor with a 15-second response time. It measures CO from 0 to 1,999 ppm and detects H2S. It is compatible with the ALTAIR 5X series gas detector and is manufactured by MSA.
Where to buy the MSA 10106725 sensor worldwide?
3G Electric supplies the MSA 10106725 sensor worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this genuine MSA replacement sensor for the ALTAIR 5X.
How to install the MSA 10106725 sensor in an ALTAIR 5X?
To install the MSA 10106725 sensor, power off the ALTAIR 5X detector, remove the old sensor by unscrewing the retaining ring, and gently pull it out. Insert the new sensor, ensuring proper alignment, then secure the retaining ring. Perform a fresh-air calibration before use per MSA guidelines.
Used in
Common applications for MSAMSA Products
3G Electric supplies MSA msa replacement sensors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.


![MSA Gas Detector Sensor: ALTAIR 4XR/ALTAIR 5X, MSA, Carbon Monoxide/Hydrogen/Hydrogen Sulfide, 4 yr (MPN 10121214). Key specifications — Manufacturer Part Number: 10121214; Brand: MSA; Compatible Detector Model/Series: ALTAIR 4XR; Measurement Range: Hydrogen Sulfide (0 to 200 ppm); Gas Detected: Carbon Monoxide; Series [NEW]: ALTAIR 5X; Part Type: Sensor.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2Fac2d4fa0-5276-48af-8c40-c46e3131ee18.jpg&w=200)
![MSA Gas Detector Sensor: Solaris, MSA, Oxygen, Sensor, 0 to 25% Measurement Range, Solaris, 2 yr (MPN 10046946). Key specifications — Manufacturer Part Number: 10046946; Brand: MSA; Compatible Detector Model/Series: Solaris; Measurement Range: 0 to 25%; Gas Detected: Oxygen; Series [NEW]: Solaris; Part Type: Sensor.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2F9ff74a2b-4b33-41f2-b6b9-ab59f206d183.jpg&w=200)
![MSA Gas Detector Sensor: ALTAIR 2XR, MSA, Hydrogen Sulfide, Sensor, 0 to 200 ppm, ALTAIR 2X, 20PG63 (MPN 10121227). Key specifications — Manufacturer Part Number: 10121227; Brand: MSA; Compatible Detector Model/Series: ALTAIR 2X; Measurement Range: 0 to 200 ppm; Gas Detected: Hydrogen Sulfide; Series [NEW]: ALTAIR 2XR; Part Type: Sensor.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2F8f0fe322-8c96-44a6-8c7b-2f293adabaa6.jpg&w=200)
![MSA Gas Detector Sensor: ALTAIR 5X, MSA, Chlorine, Sensor, 0 to 10 ppm, ALTAIR 5X, 45KE54/45KE55 (MPN 10106728). Key specifications — Manufacturer Part Number: 10106728; Brand: MSA; Compatible Detector Model/Series: ALTAIR 5X; Measurement Range: 0 to 10 ppm; Gas Detected: Chlorine; Series [NEW]: ALTAIR 5X; Part Type: Sensor.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2F79f0ff60-c194-4eac-a13a-f854cbb9ace4.jpg&w=200)
![MSA Gas Detector Sensor: ALTAIR 4XR/ALTAIR 5X, MSA, Carbon Monoxide/Nitrogen Dioxide, Sensor, 15 sec (MPN 10121217). Key specifications — Manufacturer Part Number: 10121217; Brand: MSA; Compatible Detector Model/Series: ALTAIR 5X; Measurement Range: Nitrogen Dioxide (0 to 50 ppm); Gas Detected: Nitrogen Dioxide; Series [NEW]: ALTAIR 4XR; Part Type: Sensor.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2F74511a5f-ddee-4898-902f-a26a0b6c1814.jpg&w=200)
![MSA Gas Detector Sensor: ALTAIR 4XR/ALTAIR 5X, MSA, Oxygen, Sensor, 0 to 30% vol Measurement Range (MPN 10106729). Key specifications — Manufacturer Part Number: 10106729; Brand: MSA; Compatible Detector Model/Series: ALTAIR 5X; Measurement Range: 0 to 30% vol; Gas Detected: Oxygen; Series [NEW]: ALTAIR 5X; Part Type: Sensor.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2F66562d9f-3954-408c-bfff-699ad149cd1f.jpg&w=200)
![MSA Gas Detector Sensor: ALTAIR 4XR/ALTAIR 5X, MSA, Hydrogen Sulfide/Sulfur Dioxide, Sensor, 15 sec (MPN 10121215). Key specifications — Manufacturer Part Number: 10121215; Brand: MSA; Compatible Detector Model/Series: ALTAIR 5X; Measurement Range: Hydrogen Sulfide (0 to 200 ppm); Gas Detected: Sulfur Dioxide; Series [NEW]: ALTAIR 4XR; Part Type: Sensor.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2F60ae8664-6de0-4fae-9a79-94d7f14e547a.jpg&w=200)
![MSA Gas Detector Sensor: ALTAIR 4XR/ALTAIR 5X, MSA, Carbon Monoxide/Hydrogen Sulfide, Sensor, 15 sec (MPN 10121213). Key specifications — Manufacturer Part Number: 10121213; Brand: MSA; Compatible Detector Model/Series: ALTAIR 4XR; Measurement Range: Hydrogen Sulfide (0 to 100 ppm); Gas Detected: Hydrogen Sulfide; Series [NEW]: ALTAIR 4XR; Part Type: Sensor.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2F4818647e-79d7-414f-a228-cef9b3b8d9fd.jpg&w=200)