21CX14

The Honeywell Sensing 21cx14 is a high-performance carbon monoxide (CO) and temperature sensor designed for use in residential and light commercial applications. This sensor is an essential component for CO alarm systems, ensuring the early detection and warning of potentially harmful levels of carbon monoxide in the environment.

The 21cx14 sensor is built with advanced electrochemical CO sensing technology, which provides reliable and accurate CO detection within the range of 15 to 999 parts per million (ppm). It also features a built-in temperature sensor, allowing it to measure temperatures between -40 F to 158 F (-40 C to 70 C), ensuring optimal performance in various environmental conditions.

This sensor is compact and easy to install, with a small form factor that can fit into limited spaces. It comes with a screw terminal design for quick and secure wiring connections. The sensor's housing is made of durable materials, ensuring long-lasting performance in demanding environments.

The Honeywell Sensing 21cx14 is designed to meet the requirements of various safety standards, including UL 2034 and UL 268 for carbon monoxide sensors and UL 2108 for temperature sensors. It also comes with a built-in self-diagnostic feature, which helps to ensure the sensor's proper functioning and provides early warning of any potential issues.

Overall, the Honeywell Sensing 21cx14 is an essential and reliable component for CO alarm systems, providing accurate and dependable CO and temperature detection to ensure the safety of homes and businesses. Its advanced technology, compact size, and durability make it a top choice for safety professionals and homeowners alike.

Honeywell Sensing 21cx14: A Comprehensive Analysis of Its Pros and Cons

The Honeywell Sensing 21cx14 is a popular carbon monoxide (CO) and natural gas detector. In this analysis, we will discuss the key advantages and disadvantages of this device, followed by a concluding recommendation.

1. Dual Detection: The Honeywell Sensing 21cx14 can detect both carbon monoxide and natural gas, ensuring comprehensive protection against two common household hazards.

2. Digital Display: The device features a digital display, which makes it easier to read and understand the current gas levels and battery status.

3. Voice and End-of-Life Alerts: The Honeywell Sensing 21cx14 comes with voice alerts for CO detection and a loud, piercing alarm for natural gas detection, as well as end-of-life alerts when the batteries need replacement.

4. Battery-Operated: The battery-operated design allows for easy installation and relocation of the device, without the need for hardwiring or professional assistance.

5. Long Battery Life: With a battery life of approximately 10 years for the CO sensor and 5 years for the natural gas sensor, the Honeywell Sensing 21cx14 offers extended peace of mind.

1. Sensitivity Adjustments: The Honeywell Sensing 21cx14 does not allow for sensitivity adjustments, which might be a concern for some users who prefer customized detection levels.

2. No Wi-Fi Integration: The device does not have Wi-Fi connectivity, which means you cannot monitor its readings remotely or receive notifications on your smartphone.

3. No Silent Test Button: The absence of a silent test button might make it inconvenient for those who wish to test the device without triggering the alarm.

The Honeywell Sensing 21cx14 is an excellent choice for homeowners seeking a reliable, battery-operated CO and natural gas detector. Its dual detection capabilities, digital display, voice alerts, and extended battery life make it a strong contender in the market. However, its lack of sensitivity adjustments, Wi-Fi integration, and silent test button might be drawbacks for some users.

Considering its advantages and disadvantages, the Honeywell Sensing 21cx14 is a recommended option for those who prioritize comprehensive protection against CO and natural gas hazards, easy-to-understand digital displays, and long battery life. If you require sensitivity adjustments, Wi-Fi integration, or a silent test button, you may want to explore alternative options.

Details:

Packaging and handling: items are safely eds packaged in custom shipping cartons for protection. Honeywell 21CX14 / used micro switch, enclosed basic switch, explosion proof, 480vac, rhos compliant: yes. All products are guaranteed to be working but may show signs of use if purchasing a used product. Part number 21CX14.

Sells new and surplus product develops channels to purchase such. Call to use a shipping service other than the ones listed.

specifications indusswitch:

• brand: Honeywell Sensing Solutions
• mpn: 21cx14

returns indusswitch:

• paid by: buyer
• time: 30 days
• method: money back
• policy: returns accepted

payments indusswitch:

• other
• credit card: visa
• wallet: apple-pay

general indusswitch:

• category: Business & Industrial > Electrical Equipment Supplies > Switches > Accessories

offer indusswitch:

• in stock #: 5
• options: ship-to-home
• availability: in stock
• started: february 6, 2026
• prices: $492.80–$1978.26
• item condition:
  • New
  • New – Open box
  • Used
• best offers: true
• sold #: 8

shipping indusswitch:

• service: standard
• type: fixed
• transit: 32-36 days
• class: standard

seller indusswitch:

• city: 1 millennium dr, willingboro, nj 08046
• rating: 99.5%
• # reviews: 189074

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