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Protect Your Family from Silent CO Threats
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.
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.
Typical situations where First Alert CO400-3 Battery Operated Carbon Monoxide Detector 3-Pack | Electrochemical Sensor helps — illustrative scenarios, not customer reviews.
A family in Delhi uses a gas geyser for hot water and has frequent power cuts.
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.
A homeowner in a tier-2 Indian city uses a generator during prolonged power outages.
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.
| Sensor Type | Electrochemical |
| Battery Type | 1 x 9V Alkaline (included) |
| Alarm Type | Audible & Visual |
| Alarm Loudness | 85 decibels |
| 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 ₹11,880 — ₹3,960 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. |
| Allergens / common irritants | Contains alkaline batteries (may contain potassium hydroxide). |
| 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. |
| 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 |
About First Alert
First Alert is a leading brand in home safety, specializing in carbon monoxide and smoke detection solutions for over 60 years.
Compliance & Legal
No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.
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This item:
First Alert CO400-3 Battery Operated Carbon Monoxide Detector 3-Pack | Electrochemical Sensor, 85dB Alarm
11,880
This item
First Alert CO400-3 Battery Operated Carbon Monoxide Detector 3-Pack | Electrochemical Sensor, 85dB Alarm
11,880
Total price:
37,980
You save 6,250 (14%) Extra3 items selected
3 items
37,980You save 6,250 (14%) Extra
| Attributes | Current |  |  |  |  | ||
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 11,880 12,840 | 4,830 4,960 | 21,270 26,430 | 6,770 10,690 | 4,620 5,940 | 6,010 6,330 | 6,260 7,980 |
| Brand Name | First Alert | First Alert | First Alert | First Alert | Kidde | Kidde | Eagle Abrasives |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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