MSA Gas Detector Sensor: ALTAIR 4XR/ALTAIR 5X, MSA, Carbon Monoxide/Nitrogen Dioxide
The MSA ALTAIR 4XR/ALTAIR 5X Replacement Sensor (MPN 10121217) is a Nitrogen Dioxide sensor with a 15-second response time, designed for the ALTAIR 4XR and ALTAIR 5X gas detectors. It measures Nitrogen Dioxide from 0…
SKU 3G-OTH-554431
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Product Description
The MSA ALTAIR 4XR/ALTAIR 5X Replacement Sensor (MPN 10121217) is a Nitrogen Dioxide sensor with a 15-second response time, designed for the ALTAIR 4XR and ALTAIR 5X gas detectors. It measures Nitrogen Dioxide from 0 to 50 ppm. 3G Electric sources this genuine MSA sensor as part of our industrial safety offering, backed by specialist expertise in controls and instrumentation.
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 10121217 sensor used for?
The MSA 10121217 replacement sensor detects nitrogen dioxide (NO₂) from 0 to 50 ppm in the ALTAIR 4XR and ALTAIR 5X gas detectors. It is used in industrial safety applications such as chemical plants, refineries, and confined-space entry to warn workers of toxic NO₂ exposure.
What are the specifications of the MSA 10121217 sensor?
The MSA 10121217 is a nitrogen dioxide sensor with a 15-second response time, measuring 0 to 50 ppm. It is compatible with the ALTAIR 4XR and ALTAIR 5X gas detectors. This genuine MSA part is sourced by 3G Electric for industrial safety applications.
Where to buy the MSA 10121217 sensor worldwide?
3G Electric supplies the genuine MSA 10121217 nitrogen dioxide sensor worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this replacement sensor for ALTAIR 4XR and ALTAIR 5X detectors.
How to install the MSA 10121217 sensor in an ALTAIR 5X?
Install the MSA 10121217 sensor by powering off the ALTAIR 5X detector, removing the old sensor, and inserting the new NO₂ sensor firmly into the socket. Reassemble the housing and perform a fresh-air calibration per the detector manual. Always follow MSA’s safety instructions for gas detector maintenance.
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.
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![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, 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 10106725). Key specifications — Manufacturer Part Number: 10106725; Brand: MSA; Compatible Detector Model/Series: ALTAIR 5X; Measurement Range: Carbon Monoxide (0 to 1,999 ppm); Gas Detected: Hydrogen Sulfide; Series [NEW]: ALTAIR 5X; Part Type: Sensor.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2F5a6cec18-496c-4ce6-ad09-17db90bdd113.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)