Sierra Monitor SMC 4101-03 Electrochemical O2 Oxygen Gas Sensor 4-20mA w/

Sierra Monitor SMC 4101-03 Electrochemical O2 Oxygen Gas Sensor 4-20mA w/ 5358-01

Electrochemical oxygen gas sensor transmitter with 4-20mA analog output. Measures oxygen concentration in fixed gas detection and industrial monitoring applications.

Specifications & What's Included

Model: SMC 4101-03
Output Signal: 4-20mA
Full Scale Range: 25% Oxygen
Power Requirements: 20VDC, 1A
Includes: Sierra Monitor 5358-01 Calibration Fitting
Manufactured: United States (Milpitas, CA)

Applications

This sensor type is used in fixed gas detection systems and industrial oxygen monitoring installations. Electrochemical sensors measure ambient or process oxygen levels in confined spaces, storage environments, and manufacturing facilities. The 4-20mA output integrates with standard industrial control systems and data acquisition equipment. These sensors are common in HVAC monitoring, laboratory safety systems, and process control applications requiring continuous oxygen measurement.

Condition: Used
This Sierra Monitor Corporation 4101-03 Electrochemical Oxygen Gas Sensor has been inspected and appears to be in good used condition. The blue housing and sensor probe are intact with no obvious physical damage. Because the unit has been uninstalled and in storage for some time, recalibration is recommended before returning it to service — the label shows a last calibration date of 1-21-97. The 5358-01 calibration fitting is included. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function.

Visit Our Store

Shop industrial, solar, scientific, vintage computing, electronic test, audio-visual, office equipment, and manuals in our eBay Store. Start shopping »

Follow Our eBay Store

Want first pick on new arrivals? Tap Save Seller at the top of any page — eBay alerts you the moment we list something new.

Fast Shipping

We ship via most standard carriers. Local pick-up available at our Ventura, CA warehouse.

About Us

Questions? Contact us anytime. Learn more about us »

Best Offers

Want to make an OFFER but don't see a MAKE OFFER button? Use the Contact Seller button at the top of this listing.

30-Day Guarantee

100% satisfaction guaranteed. Any issue, just reach out — we'll make it right.

Thank you for shopping with us.

Brand	Sierra Monitor
Gas(es) Detected	Oxygen
MPN	4101-03
Weight	3.0000

Sierra Monitor SMC 4101-03 Electrochemical O2 Oxygen Gas Sensor 4-20mA w/

Specifications

Returns Accepted