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First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack
90% of respondents would recommend this to a friend
BHD 11
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First Alert's Precision Detection advanced sensing technology offers early warning and reduces nuisance alarms.
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What Stands Out
Product Details
- First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.
- Battery-operated alarm allows for easy installation and maintenance
- Front access battery compartment makes for easy battery replacements
- End-of-life warning lets you know when it’s time to replace the alarm
- Test/silence button for efficient testing to ensure alarm is working properly
| Power Source | Battery Powered |
| Alarm | Smoke Alarm |
| Sensor Type | Ionization |
| Operating Humidity | 10-95% RH |
| Product Style | Precision Detection |
| Color | White |
| Item Dimensions D x W x H | 5.4"D x 5.4"W x 1.9"H (13.7 x 13.7 x 4.8 cm) |
| Item Weight | 0.7 Pounds (320 grams) |
| Brand | First Alert |
| Model Number | SMI100 |
| Number of Items | 1 |
| Manufacturer | Resideo |
| UPC | 029054022387 |
| Unit Count | 1.0 Count |
| Item Type Name | Smoke Alarm |
| Built-In Media | 9V Alkaline Battery |
| Style | Precision Detection |
| Product Dimensions (L x W x H) | 5.4"D x 5.4"W x 1.9"H (13.7 x 13.7 x 4.8 cm) |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
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Apartment Dwellers
Ideal for individuals living in apartments where hardwired smoke alarms may not be installed.
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Elderly Individuals
Perfect for seniors who may have difficulty accessing wired systems but need reliable smoke detection.
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Renters
Great option for renters who cannot modify the property to install permanent smoke alarms.
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Large Homes
Not ideal for large homes as multiple alarms are needed for adequate coverage across larger areas.
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Tech-Savvy Users
May not satisfy those seeking advanced features like smart connectivity or smartphone notifications.
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Garage or Kitchen Use
Not recommended for areas prone to false alarms, like kitchens or garages, due to increased sensitivity.
Product Description
Customer Questions & Answers
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Question:
What are the key features of the FIRST ALERT Dual Sensor Smoke and Fire Alarm SA3210?
Answer: The FIRST ALERT Dual Sensor Smoke and Fire Alarm SA3210 features both photoelectric and ionization sensors, providing comprehensive protection against both smoldering and fast-flaming fires. Additionally, it has a battery backup for continued operation during power outages and an easy-to-read battery status indicator. This combination of sensors amplifies safety by detecting different types of fires more effectively, making it ideal for homes with diverse fire risks. For instance, it’s particularly beneficial in kitchens, where cooking-related fires are common. -
Question:
How does the dual sensor technology enhance fire safety?
Answer: The dual sensor technology in the FIRST ALERT SA3210 includes photoelectric and ionization sensors that work together to provide a broader range of detection. Photoelectric sensors are more responsive to smoldering, smoky fires, while ionization sensors are better at catching fast, flaming fires. This combined approach minimizes the chances of false alarms while improving the likelihood of early detection, giving homeowners more time to react in case of a fire emergency, such as cooking incidents or electrical faults. -
Question:
How can I properly install the FIRST ALERT SA3210 smoke and fire alarm?
Answer: To install the FIRST ALERT SA3210 smoke and fire alarm, start by choosing a location that is at least 10 feet away from cooking appliances to reduce false alarms. Mount the alarm on the ceiling or high on the wall, ensuring it’s at least 3 inches away from the corner. Use the included mounting bracket and screws for a secure fit. Once installed, perform a test to ensure it’s functioning correctly. Following these steps enhances protection, especially in areas where fire risk is elevated, such as kitchens or near fireplaces. -
Question:
What is the importance of regular testing and maintenance of the alarm?
Answer: Regular testing and maintenance of the FIRST ALERT SA3210 alarm are crucial for optimum performance. It is recommended to test the alarm at least once a month by pressing the test button. Additionally, ensure that the alarm is clean and free from dust, which can impede its sensors. By maintaining your smoke alarm, you not only ensure reliable performance but also maximize the safety of your home, enabling your family to react swiftly in emergencies, thus saving lives and property. -
Question:
What should I do if my smoke alarm goes off for no reason?
Answer: If your FIRST ALERT SA3210 smoke alarm goes off and there’s no visible danger, first check for any sources of steam, smoke, or dust nearby that may have triggered it. If it continues to sound without cause, ensure the unit is clean and free of debris. If false alarms persist, you may need to replace the batteries. In the case of unusual behavior, consulting the user manual or customer support is advisable to investigate potential malfunctions or sensor issues that might require attention. -
Question:
What type of alert does the FIRST ALERT SA3210 provide in case of smoke or fire?
Answer: The FIRST ALERT SA3210 provides a loud, piercing alarm that alerts you to potential smoke or fire. This alert is designed to cut through ambient noise to ensure it is heard throughout the home. Furthermore, the dual sensor technology means that if smoke is detected, you’ll be warned early enough to take action, whether it’s evacuating the premises or notifying emergency services. This is especially valuable in sleeping areas, ensuring everyone has time to respond. -
Question:
Can I install the FIRST ALERT Dual Sensor Smoke and Fire Alarm in my home’s bedrooms?
Answer: Yes, you can and should install the FIRST ALERT SA3210 Dual Sensor Smoke and Fire Alarm in bedrooms. This placement ensures that occupants are alerted in case of an emergency, particularly at night when they might be asleep. It is recommended to install alarms in every bedroom and outside sleeping areas for comprehensive coverage. This strategic installation makes a significant difference in ensuring the safety of all household members during a fire emergency. -
Question:
How long do the batteries in the FIRST ALERT SA3210 typically last?
Answer: The batteries in the FIRST ALERT SA3210 are designed to last up to six months, depending on usage and the model of battery used. Regularly checking the battery status indicator helps ensure the device is functioning properly. It's advisable to replace the batteries every six months or whenever the alarm signals a low battery. Keeping up with battery maintenance ensures that the alarm is consistently operational, thus providing ongoing safety for your household. -
Question:
Is the first alert SA3210 suitable for commercial settings?
Answer: While the FIRST ALERT SA3210 is primarily designed for residential use, it can be installed in light commercial settings with low fire risks, like small offices or home-based businesses. However, in more extensive enterprises or businesses with higher fire hazards, larger and more sophisticated fire alarm systems are recommended. In such cases, consulting fire safety professionals can help you determine the best system for your specific needs and enhance workplace safety. -
Question:
Where can I buy the FIRST ALERT Dual Sensor Smoke and Fire Alarm, SA3210, White?
Answer: You can buy the FIRST ALERT Dual Sensor Smoke and Fire Alarm, SA3210, White at Ubuy. Ubuy offers a convenient online shopping experience with various options to purchase your safety equipment. By choosing Ubuy, you gain access to reliable customer service and additional information about your purchase, helping to ensure your home is equipped with the best safety products.
FirstAlert Smoke Detectors & Fire Alarms SMI100 Editorial Review
The First Alert SMI100 Battery-Operated Smoke Alarm, 1-Pack has received mixed reviews from customers. Some users have had issues with the alarm randomly going off, only working once after being turned off, and difficulty in seeing the flashing LED light indicating normal operation. However, others have found it easy to install and test, recommending it for its simplicity and effectiveness. Overall, the First Alert SMI100 is easy to install and has been effective in detecting smoke in some cases. However, there are concerns about its reliability and the visibility of its LED light, which may impact its usability for some users. **
Customer Reviews & Ratings
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5 Star
79%
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4 Star
11%
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3 Star
4%
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2 Star
1%
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1 Star
5%
Review this product
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Pros
- Easy to install
- Effective in detecting smoke in some instances
- Comes with screws for installation
Cons
- Randomly goes off
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BHD 11
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Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Features & Benefits
- Equipped with advanced Precision Detection technology.
- Meets new industry standards for smoke alarms.
- Easy installation with a battery-operated design.
- Front access compartment simplifies battery replacements.
- Includes an end-of-life warning for timely replacement.
- Features a test/silence button for efficient maintenance.





















