Replacement 3 Year O2 Sensor | BW

The SR?X3P is a long-life, replacement oxygen (O?) sensor designed for use with Honeywell?BW’s GasAlert MicroClip?X3 series gas detectors. Built for durable performance, this sensor offers enhanced response time in extreme conditions, improved field reliability, and superior environmental stability. It comes with a 3-year warranty, while its expected operating life in ambient air is up to 5 years. The SR?X3P is optimized for reliable O? detection over extended periods, reducing maintenance frequency and overall cost of ownership

Key Features & Benefits

• Long-Life Design
  The SR?X3P is designed for extended lifetime compared to standard oxygen sensors. According to the manufacturer, it can last up to 5 years in ambient air, which helps reduce the frequency of sensor replacements.
• Improved Field Reliability
  The sensor is built to perform reliably in real-world conditions. Listings highlight “improved field reliability” and “superior environmental performance”.
• Enhanced Response Time
  The SR?X3P is engineered to respond quickly even under extreme environmental conditions.
• Lead-Free Construction
  According to internal / service documentation, the SR?X3P is a “long life, lead?free O? sensor.
• Easy Replacement
  It’s a drop-in replacement designed specifically for the MicroClip?X3 series (the user manual lists SR?X3P under replacement parts for X3).
• Warranty Coverage
  Comes with a 3-year warranty from Honeywell BW Technologies.

Technical / Operational Specifications

Operating Environment:

• Designed for use in the MicroClip X3, which supports O? sensor range up to 30% with 0.1% resolution.
• The MicroClip X3 itself is rated to operate in ambient temperatures from –20?°C to +50?°C.

Sensor Lifetime / Degradation:

• Though warrantied for 3 years, the sensor’s expected service life is ~5 years in air under nominal conditions.
• Long life is achieved by an electrochemical cell design that does not rely on a “consumable anode” (unlike some older O? sensors).

Warranty Terms:

• According to Honeywell’s warranty document, the O? sensor SR?X3P (4OXLL variant) has a 3?year warranty.

Use Cases & Applications

• Gas Detection / Safety:
  Ideal for use in personal portable gas detectors, specifically the GasAlert MicroClip X3, where oxygen monitoring is critical (e.g., confined space, industrial safety, etc.).
• Maintenance / Replacement:
  Used when the original O? sensor in a MicroClip?X3 ages or degrades. Using a long-life sensor like SR?X3P lowers maintenance costs across the life of the detector.
• Cost of Ownership:
  Because of its long expected life (5 years), replacing with SR?X3P is cost-effective in the long run, reducing downtime and sensor swap frequency.

Important Notes / Limitations

• Stabilization Time:
  After replacing the sensor, it’s recommended to allow the device some time (sensor “burn-in” / stabilization) before relying on readings fully, as is typical for electrochemical O? sensors.
• Calibration / Bump Test:
  Even with a long-life sensor, regular calibration (span calibration) and bump testing are required to maintain accuracy and safety compliance.
• Environmental Stress:
  While the sensor is built for “superior environmental performance,” extreme conditions (very high humidity, contamination, or chemical exposure) may still impact its performance or life span.