
E81-5 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $9.95 | Condition is New, Cad Cell Eye for Honeywell Home C554A Flame Detector, FREE SHIPPING | 98.8% |
![]() | $10.35 | Condition is New, Cad Cell Eye for Honeywell Home C554A Flame Detector, FREE SHIPPING | 99.7% |
![]() | $10.49 | Condition is New, Cad Cell Eye for Honeywell Home C554A Flame Detector, FREE SHIPPING | 99.2% |
![]() | $10.78 | Condition is New, Cad Cell Eye For Honeywell C554a Flame Detector Lot Replacement, FREE SHIPPING | 100.0% |
![]() | $11.99 | Top Pick! Condition is New, Cad Cell Eye for Honeywell C554A Flame Detector, FREE SHIPPING | 99.3% |

The Honeywell E81-5 CAD Cell for C554A Flame Detector is an essential component for fire detection systems that require high sensitivity and reliability. This CAD cell, or Catalytic Sensor Assembly, is designed specifically for use in the Honeywell C554A Flame Detector.
The E81-5 CAD Cell employs a catalytic sensor technology that utilizes a platinum and rhodium catalyst coated on a ceramic substrate. When exposed to flames or combustible gases, the catalyst promotes the oxidation of these substances, generating an electrical current that is proportional to the flame size or gas concentration. This electrical signal is then transmitted to the flame detector for further processing and alarm activation.
The CAD Cell is designed for use in various industrial applications where the risk of fire or explosions is high. It offers excellent sensitivity, capable of detecting even small flames, making it ideal for applications where early fire detection is crucial. The cell also boasts a long service life, with a typical lifetime of over 10 years under normal operating conditions.
The E81-5 CAD Cell is constructed to withstand harsh environments, featuring an explosion-proof design with a Type 4X enclosure for use in Class I, Division 1 and Class II, Division 2 hazardous locations. The cell is also resistant to vibrations and shock, ensuring stable and reliable operation even under challenging conditions.
The Honeywell E81-5 CAD Cell for C554A Flame Detector requires minimal maintenance, with a simple design that eliminates the need for calibration or adjustment. The cell can be easily replaced when necessary, ensuring minimal downtime for maintenance and repair.
Overall, the Honeywell E81-5 CAD Cell for C554A Flame Detector is an essential component for reliable and effective fire detection systems. Its high sensitivity, long service life, and robust design make it an ideal choice for various industrial applications where fire safety is a top priority.
The Honeywell E81-5 CAD cell is a crucial component for the C554A flame detector used in various industries, including oil and gas, petrochemical, and chemical processing. This component is responsible for detecting and analyzing the flames' infrared radiation to trigger an alarm. In this response, we will discuss the pros and cons of buying a Honeywell E81-5 CAD cell for a C554A flame detector.
Pros:1. High Sensitivity: The Honeywell E81-5 CAD cell offers high sensitivity, enabling it to detect small flames that may not be detected by other flame detectors. This feature is crucial in industries where the risk of small fires is high.
2. Long Life Span: The CAD cell has a long life span, typically lasting up to 10 years, reducing the frequency of replacements and maintenance requirements.
3. Robust Design: The Honeywell E81-5 CAD cell is designed to withstand harsh environments, including high temperatures, humidity, and vibrations, making it suitable for use in industrial applications.
4. Calibration: The CAD cell can be easily calibrated, ensuring accurate and reliable flame detection. This feature reduces the risk of false alarms and ensures the safety of personnel and assets.
Cons:1. Cost: The Honeywell E81-5 CAD cell is a costly component, and its high price tag may be a barrier for some organizations, particularly those with limited budgets.
2. Complex Installation: Installing the Honeywell E81-5 CAD cell requires specialized knowledge and expertise, adding to the installation cost and time.
3. Sensitivity Limitations: While the Honeywell E81-5 CAD cell offers high sensitivity, it may not be suitable for detecting certain types of flames, such as those with low infrared emissions.
Conclusion:The Honeywell E81-5 CAD cell is a valuable investment for organizations that require high-performance flame detection in harsh industrial environments. Its long life span, high sensitivity, and robust design make it a reliable and effective solution. However, its high cost and complex installation requirements may be a barrier for some organizations. Ultimately, the decision to purchase a Honeywell E81-5 CAD cell depends on the specific requirements of the organization and the budget available.
Recommendation:If your organization requires high-performance flame detection in a harsh industrial environment, the Honeywell E81-5 CAD cell is an excellent investment. However, if cost is a concern, it may be worth considering alternative flame detection solutions with lower upfront costs and simpler installation requirements. It is essential to evaluate the specific requirements of your organization and consult with industry experts to determine the best solution for your needs.
Details:
This replacement part is for a cadmium sulfide flame detector use with protects relay oil primary controls. Replacement part for model number: C554A-1463. Cad cell eye for Honeywell C554A flame detector: about this product. Westward cad cell eye is sealed with glass-to-metal hermetic to protect.
Cell individually sealed in blister - keeps cells protected and clean until use. This cad cell eye is a replacement part for Honeywell home C554A flame detector. Boxes, APO/FPO/dpi addresses.
specifications centrafurn:
- brand: Honeywell
- mpn: E81-5
- color: Black
- item depth: 0.75 In
- type: Central Furnace
- unit type: Unit
- heating system: Boiler
- item height: 1 In
- item width: .75 In
- item weight: 0.25 Lb
general centrafurn:
- category: Home & Garden > Heating, Air > Cooling Systems > Central Furnaces
returns centrafurn:
- time: 30 days
- method: money back
- policy: returns accepted
- paid by: seller
seller centrafurn:
- # reviews: 189
- city: ashburn, virginia
- rating: 100.0%
shipping centrafurn:
- service: standard
- class: standard
- transit: 3-9 days
- type: fixed
payments centrafurn:
- wallet: paypal
- other
- credit card: visa
offer centrafurn:
- sold #: 8
- started: january 5, 2026
- options: ship-to-home
- availability: in stock
- prices: $9.95–$11.99
- item condition: New
- in stock #: 5
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