How to buy an original First Alert CO400-3 detector in India?

Purchase directly from crowcrowcrow.com to ensure you receive 100% original, factory-sealed First Alert CO400-3 detectors, imported from authorized US retailers and authorized brand partners. All customs duties and GST are pre-paid and included in the listed INR price. Your order is shipped via ExpressBox with tracking for secure delivery across India.

Will this carbon monoxide detector work in Indian homes?

Yes, the First Alert CO400-3 detectors are battery-operated, making them ideal for Indian homes. They function independently of mains voltage and are perfect for use during frequent power outages. Each unit uses a standard 9V alkaline battery, ensuring continuous protection regardless of electrical supply.

How long does a carbon monoxide detector last before replacement?

The electrochemical sensor in each First Alert CO400-3 detector has a lifespan of up to five years. The unit features an end-of-life timer that will alert you with a chirp when it's time to replace the entire device, ensuring ongoing safety.

What is the best placement for a carbon monoxide detector?

For complete protection, place one detector on each level of your home, including basements and attics. It's also crucial to install one inside or near every sleeping area. Avoid placing them directly next to fuel-burning appliances or in kitchens where temporary CO spikes can occur during normal use.

What does the 85-decibel alarm mean?

An 85-decibel alarm is a loud, distinct sound designed to alert occupants to dangerous carbon monoxide levels. When CO concentration reaches a critical point, the detector will sound this alarm, giving you vital time to evacuate and seek fresh air.

Are these detectors UL listed?

Yes, all First Alert CO alarms, including the CO400-3 model, are rigorously tested and meet UL standards. This certification confirms that the product has undergone thorough safety and performance evaluations.

What is the difference between a CO detector and a smoke detector?

A carbon monoxide (CO) detector specifically senses carbon monoxide gas, an odorless, colorless, and poisonous byproduct of incomplete combustion. A smoke detector senses smoke particles from fires. Both are essential safety devices, but they detect different hazards and should be installed in appropriate locations.

First Alert CO400-3 White Battery Operated CO Detector 3-Pack

Name: First Alert CO400-3 Battery Operated Carbon Monoxide Detector 3-Pack | Electrochemical Sensor, 85dB Alarm
Brand: First Alert
SKU: ddd3317
Price: 11982.00 INR
Availability: InStock

About this item

First Alert CO400-3 Carbon Monoxide Detectors offer reliable protection for Indian households. This 3-pack features advanced electrochemical sensors, the most accurate technology for detecting invisible carbon monoxide from sources like gas geysers, generators, or faulty appliances. Battery operation ensures continuous monitoring, vital during frequent power outages across India. An 85-decibel alarm sounds when CO levels become dangerous, providing critical early warning.

Designed for ease of use, each unit has a single button for testing and silencing. The permanent sensor lasts up to five years, with an end-of-life timer to signal replacement. Place detectors on every level and in every bedroom for comprehensive safety. The included optional wall mount offers flexible placement without needing an electrical outlet.

Unlike local alternatives that may rely on mains power, these battery-operated units offer consistent protection regardless of electrical supply. All customs duties and GST are included in the listed price, with delivery via ExpressBox. Ensure your family's safety with this essential home monitoring system.

Key Features

Keep your family safe with this 3-Pack of easy to use, battery operated carbon monoxide alarms; battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room
A loud 85-decibel alarm sounds when CO levels reach dangerous levels
To ensure complete protection make sure to place one on each level of your home and in each bedroom
All First Alert CO alarms are rigorously tested to meet UL standards. Dimensions-3.4 x 1.5 x 5 inches

Why choose this product

Reliable Protection for Indian Homes

Carbon monoxide is a silent threat from gas geysers, generators, and cooking. This 3-pack provides essential, continuous monitoring. The battery-powered design ensures safety even during India's frequent power cuts, unlike plug-in units that fail without electricity. Electrochemical sensors offer superior accuracy for detecting CO from multiple sources, giving you peace of mind.

Who It's For vs. Who Should Skip It

Ideal for all Indian homes using gas appliances, generators, or located in areas prone to power outages. Recommended for every floor and bedroom. Skip if you require a hardwired unit for a specific building code, or if you are sensitive to battery replacement alerts. For those needing integrated smart home features, consider a different model.

How to use

Install Battery — Open the battery compartment on the back of each detector. Insert one 9V alkaline battery (included) into each unit, ensuring correct polarity. Close the compartment securely.
Test the Alarm — Press and hold the test/silence button on the front of the detector for a few seconds. The unit should sound an 85-decibel alarm and flash a light, confirming it's working.
Mount the Detector — Place detectors on a level surface or use the included mounting bracket to attach to a wall. Position on each floor and near sleeping areas, at least 15 cm (6 inches) from cooking appliances.
Regular Maintenance — Test the alarm monthly by pressing the test button. Replace batteries immediately when a low-battery chirp is heard. Note the 5-year sensor lifespan and replace the unit when it signals end-of-life.

Example scenarios

Typical situations where First Alert CO400-3 Battery Operated Carbon Monoxide Detector 3-Pack | Electrochemical Sensor helps — illustrative scenarios, not customer reviews.

Scenario 1

Illustrative example

Where it helps

A family in Delhi uses a gas geyser for hot water and has frequent power cuts.

How this product helps

The First Alert CO400-3 3-pack provides continuous, battery-powered monitoring essential for detecting CO leaks from the geyser, even when electricity is out. Placing units on each floor ensures comprehensive safety.

Scenario 2

Illustrative example

Where it helps

A homeowner in a tier-2 Indian city uses a generator during prolonged power outages.

How this product helps

This 3-pack ensures safety when running a generator. The battery-operated detectors will alert the household to any CO buildup, a critical risk associated with generator use, even if the main power is off.

Specifications & installation

Specifications

Sensor Type	Electrochemical
Battery Type	1 x 9V Alkaline (included)
Alarm Type	Audible & Visual
Alarm Loudness	85 decibels

Installation & usage

Power Source	Battery Powered (1 x 9V per unit)
Batteries Included	Yes (3 x 9V)
Sensor Lifespan	Up to 5 years
End-of-Life Timer	Yes
Installation	No installation required; optional wall mount included
Cost per unit (approx.)	3 units at ₹11,982 — ₹3,994 per unit
Shelf life after opening	N/A (device)
Reapplication math	N/A (device)
Contraindications	Not for use in kitchens or near fuel-burning appliances where CO may be present temporarily during normal operation; not a smoke detector.

How we compare

Feature	First Alert CO400-3	Others
Sensor Technology	Advanced Electrochemical Sensor for high accuracy.	Varies by brand; some may use less accurate or older sensor types.
Power Source	Battery Operated (3 x 9V included) — works during power outages.	Often plug-in models requiring mains power; battery-only options may be less common or have shorter lifespans.
Alarm Loudness	Loud 85-decibel alarm for clear warning.	Typically 85dB, but quality and consistency can vary.
Sensor Lifespan	Up to 5 years with end-of-life timer.	Typically 5-7 years, but replacement alerts may be less sophisticated.
Cost per unit (approx.)	3 units at ₹11,982 — ₹3,994 per unit	Local 3-packs can range from ₹1500-₹3000, depending on brand and features.

SKU	ddd3317
GTIN	0029054009142
Brand	First Alert
Model Name	CO400-3
Part Number	CO400-3
Color	White
Pattern	Detector
Material	Carbon
Number of Items	3
Dimensions (Unit)	8.6 cm x 3.8 cm x 12.7 cm (3.4 x 1.5 x 5 inches)
Item Weight (Unit)	0.23 kg (0.5 lb)
Operating Humidity	10-95% RH
Country of Origin	Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

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First Alert CO400-3 Battery Operated Carbon Monoxide Detector 3-Pack | Electrochemical Sensor, 85dB Alarm

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