(888) 497-0290
BLOG
CONTACT
FORUM
FIRE +
System Sensor COSMO-4W Carbon Monoxide/Smoke Detector
System Sensor COSMO-4W Carbon Monoxide/Smoke Detector - Image 2
System Sensor COSMO-4W Carbon Monoxide/Smoke Detector - Image 3

System Sensor COSMO-4W Carbon Monoxide/Smoke Detector

SKU: 31297
Manufacturer Part #: COSMO-4W
Condition: New
Brand: System Sensor
Status: Active

$157.37

Ships in 3 business days
Limited Stock

Description

Documents

Additional information

Weight 0.6 lbs
Dimensions 5.50 × 5.50 × 2.50 in
Condition

New
Brand

System Sensor
Production Status

Active

Reviews

There are no reviews yet.

Be the first to review “System Sensor COSMO-4W Carbon Monoxide/Smoke Detector”

i4 Series Combination CO/Photoelectric Smoke Detector

Download

System Sensor - Data Sheet

i4 Series Combination Carbon Monoxide (CO) / Photoelectric Smoke Detector

Download

System Sensor - Installation and Maintenance Instructions

CO Response, i4 Series Combination CO/Smoke Detector

Download

System Sensor - Safety Bulletin

Attributes

Weight 0.6 lbs
Dimensions 5.50 × 5.50 × 2.50 in
Condition

New
Brand

System Sensor
Production Status

Active

Product Features

  • Single device for CO and smoke detection that uses less wiring and fewer junction boxes
  • Compatible with a wide range of control panels with the use of the required i4 Interface Module.
  • Sends distinct smoke and CO signals to the panel
  • Sounds Temporal 3 for smoke and Temporal 4 for CO
  • Built-in 85dB sounder
  • LEDs display both CO and smoke status
  • External IR LED provides extended range sensitivity testing
  • Versatile mounting allows for wall or ceiling placement
  • Easily replaceable electrochemical CO cell with 10-year end-of-life timer that signals the panel and chirps to alert the homeowner
  • RealTest® enables functional test using canned CO
  • Drift compensation and smoothing algorithms provide false alarm immunity
  • Compatible with SENS-RDR sensitivity tester
  • Full agency compliance with UL 268 and UL 2075

What's Included

Shipping Details

Pricing & Lead Times are based on details provided directly by the manufacturer, our network of distributors and based on historical lead times on any given product. This is the most up-to-date information we have currently. All orders are subject to 1 – 5 days of processing as the units must go through our product verification process at our main Shipping Hub in New York prior to being shipped out to you. Depending on your circumstances, we can expedite this processing time for additional costs, but orders cannot be expedited unless they are currently in stock. PLEASE NOTE: Any and all pricing and availability are subject to change without notice being given to the client.

Return Details

Equipment must be returned within (30) days of the date it was shipped, or made ready for pickup. In order to initiate a return, you must contact our sales team via email at [email protected] to receive an RMA # if it meets all criteria. Products returned after (30) days from our shipment date will be refused. After RMA acceptance, any parts that are returned to FireAlarm.com are subject to a minimum 25% restocking fee. New parts must be returned with original packaging, in un-opened, and uninstalled condition. If not, these parts may be subject to increased restocking fees or refusal. Depending on the circumstances of your order, and if you are a long-time customer of FireAlarm.com, other arrangements can be made. See our complete return policy for more information at: https://firealarm.com/faq/

Testimonials

Rick A.
★★★★★
Dallas, TXI
"Great service. I received help with exactly what I needed and I received it all in a timely manner."
Charles O.
★★★★★
New Brunswick, NJ
"I had a big engineering/logistics issue that William over at FireAlarm.com helped me with. I don’t know what I would’ve done without their help!"
Jason G.
★★★★★
Los Angeles, CA
"The fastest delivery I’ve seen. Needed overnight emergency parts and I got just that."
Julia S.
★★★★★
Tampa, FL
"Needed last-minute maintenance done on my building’s system, and FireAlarm.com exceeded my expectations with how quickly it was done."

Leave a review

Reviews

There are no reviews yet.

Be the first to review “System Sensor COSMO-4W Carbon Monoxide/Smoke Detector”

You may also like…

You may also like...

System Sensor EOLR-1

System Sensor EOLR-1

Mfr. Part #: EOLR-1
SKU: 16296
Availability:
In Stock
Ships in 5 business days

$30.24

Add to cart
System Sensor COSMOD4W 4-Wire Interface Module, for COSMO-4W

System Sensor COSMOD4W 4-Wire Interface Module, for COSMO-4W

Mfr. Part #: COSMOD4W
SKU: 31288
Availability:
Limited Stock
Ships in 8 business days

$69.32

Add to cart
System Sensor SENS-RDR

System Sensor SENS-RDR

Mfr. Part #: SENS-RDR
SKU: 31775
Availability:
On Backorder

$575.78

Add to cart

Stay Informed of Fire Safety News

Subscribe for timely updates on industry regulations, technology innovations, and practical guides tailored for busy professionals.

Follow Us On Social Media

Instagram Linkedin Facebook Youtube

Need Assistance?
We're Here To Answer Your Questions.

Need Assistance?
We're here to help.

Monday to Thursday: 8 AM – 7 PM (EST)
Friday: 8 AM – 5 PM (EST)

(888) 497-0290
[email protected]
[email protected]
[email protected]

Shop All Products

Shop by Category

Shop by Brands

WSA

Sell on FireAlarm.com

Installation & Services

Blog

Forum

FireAlarm.com +

Emergency Services

Maintenance & Inspection Services

Consulting & Professional Services

Design & Build Services

Our Company

Our Values

Our Client List

Worldwide

Contact page

Privacy Policy & Terms of Use

Refund Policy

Help

About

Our Company

Our Values

Our Client List

Our Brands

Worldwide

Contact Us

Policies

Privacy Policy & Terms of Use

Refund Policy

Help

Services

Emergency Services

Maintenance & Inspection Services

Consulting & Professional Services

Design & Build Services

Products

Shop All Products

Shop by Category

Shop by Brands

Partnership Opportunities

Sell on FireAlarm.com

Installation & Services

Media

Blog

Forum

WSA USA Electrical Supplies

FireAlarm.com +

Copyright 2025 © FireAlarm.com | All Rights Reserved

Pricing & Availability Details

Pricing & Lead Times are based on details provided directly by the manufacturer, our network of distributors and based on historical lead times on any given product. This is the most up-to-date information we have currently. All orders are subject to 1 – 5 days of processing as the units must go through our product verification process at our main Shipping Hub in New York prior to being shipped out to you. Depending on your circumstances, we can expedite this processing time for additional costs, but orders cannot be expedited unless they are currently in stock. PLEASE NOTE: Any and all pricing and availability are subject to change without notice being given to the client.

Payment Details

You may remit payment via a US-Based Credit Card (CC Authorization Form), Wire Transfer (w/ $30 or $50 fee added to invoice), via PayPal (Or PayPal Pay Later), via Apple or Google Pay, or by mailing us a check. You can also call in with your credit card information at any time: 888-497-0290.

Return & Cancellation Details

Equipment must be returned within (30) days of the date it was shipped, or made ready for pickup. In order to initiate a return, you must contact our sales team via email at [email protected] to receive an RMA # if it meets all criteria. Products returned after (30) days from our shipment date will be refused. After RMA acceptance, any parts that are returned to FireAlarm.com are subject to a minimum 25% restocking fee. New parts must be returned with original packaging, in un-opened, and uninstalled condition. If not, these parts may be subject to increased restocking fees or refusal. Depending on the circumstances of your order, and if you are a long-time customer of FireAlarm.com, other arrangements can be made. See our complete return policy for more information at: https://firealarm.com/faq/