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Universal Security Instruments Hardwired 10 Year Tamper Proof Permanent Power Sealed Battery 3-in-1 Universal Smoke Sensing & Carbon Monoxide Combination Alarm, Model MIC1509S,white, Corded Electric

4.1 4.1 out of 5 stars 639 ratings
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List Price: $69.95
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Purchase options and add-ons

Brand Universal Security Instruments
Style Hardwired
Power Source Hardwired
Color white
Product Dimensions 5.75"D x 5.75"W x 1.75"H
Item Weight 0.66 Pounds
Alarm Audible
Global Trade Identification Number 00042741315098
Number of Items 1
Manufacturer Universal Security Instruments

About this item

  • 3-in-1 Smart Alarm provides continuous, reliable protection. Provides temperature and humidity compensation
  • Smart Alarm Technology provides peace of mind with this alarm — Fast-and-easy installation suitable for houses, apartments, dormitories and more
  • Features microprocessor intelligence to virtually eliminate nuisance alarms
  • Includes 10 Year Permanent Power Alkaline Batteries. Alkaline batteries are safer and more eco-friendly dispose than lithium batteries
  • Features quick activation battery pull tab that makes the alarm easy to install while the deactivation key makes it the batteries safe for disposal
  • Comes with a ten-year limited warranty

Frequently bought together

Universal Security Instruments Hardwired 10 Year Tamper Proof Permanent Power Sealed Battery 3-in-1 Universal Smoke Sensing &
This item: Universal Security Instruments Hardwired 10 Year Tamper Proof Permanent Power Sealed Battery 3-in-1 Universal Smoke Sensing & Carbon Monoxide Combination Alarm, Model MIC1509S,white, Corded Electric
$58.99
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Universal Security Instruments Hardwired Ionization Smoke and Fire Alarm with Battery Backup, Model MI106
$29.99
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    GreenCircle Certified: Certified Energy Savings

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From the manufacturer


About USI

Universal Security Instruments is a U.S. based manufacturer of high quality, easy-to-install home safety products. Founded in 1969, Universal Security Instruments has over 40 years of heritage in providing home safety products for families. With state-of-the-art manufacturing facilities, Universal Security Instruments continues to launch revolutionary new products and technologies with the mission of always working to keep families protected.

3-in-1 Universal Smoke Sensing Carbon Monoxide Combination Alarm with 10 Year Permanent Power

The MIC1509S alarm features a 10-year sealed battery for permanent power and continuous protection in the event of a power outage. Universal Smoke Sensing Technology detects fast flaming fires, slow smoldering fires and carbon monoxide while Microprocessor Intelligence virtually eliminates nuisance alarms for the perfect 3-in-one protection.

  • Features Universal Smoke Sensing Technology and microprocessor software
  • Backup battery provides additional protection
  • 10 year permanent power reduces battery waste

10-Year Permanent Power Alarm

Studies show that one of the leading causes of preventable death due to smoke, fire and carbon monoxide is a deactivated or inoperable alarm. This alarm is equipped with a 10-year sealed battery that provides a decade of peace of mind, and no batteries to change—ever!

Permanent Power allows you to simply install and activate the alarm for protection that will last for up to 10 years. This gives you maintenance-free battery power, eliminating low battery chirps and the need to buy replacement batteries throughout the life of the alarm.

Purchasing a permanent power alarm saves you money and reduces environmental impact by providing environment friendly protection. This alarm reduces environmental waste and eliminates disposal of up to twenty 9-volt batteries.

Universal Smoke Sensing Technology Tested by the University of Maryland

Universal Smoke Sensing Technology combines the benefits of Photoelectric and Ionization technologies to detect both types of fires with one accurate sensor. The National Fire Protection Association has long recommended both Ionization and Photoelectric smoke alarm technologies for quick response to fast flaming and slow smoldering fires, and now this technology has been further tested by the University of Maryland to confirm quicker response times.

USI''s patented technology detects slow smoldering fires up to 87-faster than the maximum allowable alarm limit and is effective at detecting fast flaming fires such as grease and kitchen fires. This alarm also features carbon monoxide detection for 3 protections in 1 device. Instead of purchasing multiple alarms or expensive dual sensor units, install a Universal Smoke Sensing Alarm to quickly detect both types of fires.

Eliminate Nuisance Alarms with Microprocessor Software

Almost two-thirds of home fire deaths result from fires in homes with no smoke alarms or no working smoke alarms. Universal Security Instruments created microprocessor software to virtually eliminate nuisance alarms caused by non-hazardous sources such as cooking smoke and steamy showers. The only way to safely prevent nuisance alarms is to choose a smoke alarm with a microprocessor that will help distinguish a false alarm from a real fire. This alarm is the only product to offer smart microprocessor technology that is tested to provide the most reliable detection results and keep families safe.

MPL316S
MPC322S
MIC1509S
MPC122S
MI106S
MP116S
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Customer Reviews
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Price — — — — — —
Sensor Type Photoelectric Photoelectric Universal Smoke Sensing Technology Photoelectric Universal Smoke Sensing Technology Photoelectric
Fast Flaming Fire Detection ✓ ✓
Slow Smoldering Smoke Detection ✓ ✓ ✓ ✓ ✓ ✓
Carbon Monoxide Detection ✓ ✓ ✓
Backup Battery ✓ ✓ ✓ ✓

Product information

Technical Details

Additional Information

Warranty & Support

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Product Warranty: For warranty information about this product, please click here. [PDF ]

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Universal Security Instruments Hardwired 10 Year Tamper Proof Permanent Power Sealed Battery 3-in-1 Universal Smoke Sensing & Carbon Monoxide Combination Alarm, Model MIC1509S,white, Corded Electric

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Product Description

Product Description

Universal Security Instruments MIC1509S 3-in-1 Universal Smoke Sensing Carbon Monoxide Combination Alarrm with 10 Year Sealed Battery. Available December 15, 2014.

From the Manufacturer

Founded in 1969, Universal Security Instruments has over 50 years of heritage in providing home safety products for families. With state-of-the-art manufacturing facilities, Universal Security Instruments continues to launch revolutionary new products and innovative technologies with the mission of always working to keep families protected.

Product guides and documents

Safety Information (PDF)
User Guide (PDF)
User Manual (PDF)

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Universal Security Instruments Hardwired 10 Year Tamper Proof Permanent Power Sealed Battery 3-in-1 Universal Smoke Sensing & Carbon Monoxide Combination Alarm, Model MIC1509S,white, Corded Electric
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Price-16% $58.99
List: $69.95		$19.19$43.99-20% $68.79
List: $85.99		$61.99$37.50
Delivery
Get it as soon as Tuesday, Mar 18
Get it as soon as Tuesday, Mar 18
Get it as soon as Tuesday, Mar 18
Get it as soon as Tuesday, Mar 18
Get it as soon as Tuesday, Mar 18
Get it Mar 18 - 20
Customer Ratings
4.14.1 out of 5 stars639
4.44.4 out of 5 stars765
4.64.6 out of 5 stars4,787
4.54.5 out of 5 stars624
4.44.4 out of 5 stars481
4.64.6 out of 5 stars5
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Important information

Bulb Voltage

120 volts

Customer reviews

4.1 out of 5 stars
639 global ratings

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Customers say

Customers find the smoke detector easy to install and satisfied with its replacement value. However, some have reported issues with alarm frequency, such as beeping or chirping throughout the night. They also dislike the durability of the product. There are mixed opinions on functionality, battery life, and value for money.

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Ease of installationSmoke detectorReplacement valueFunctionalityBattery lifeValue for moneyAlarm frequencyDurability
39 customers mention "Ease of installation"30 positive9 negative

Customers find the installation process of the gas smoke fire alarm simple. They mention it's easy to install, just remove two screws.

"...Installation was as easy as replacing 3 wire nuts and a new mounting plate." Read more

"...This model was the one that I needed and installation was a breeze.No more chirping." Read more

"...They are easy to install and the notion of the 10-year battery sounds great, but, I’ve already had to replace 4 of these detectors in just over 5..." Read more

"...me to use the screws and box already installed, it was very difficult to attach the unit to the mount...." Read more

13 customers mention "Smoke detector"10 positive3 negative

Customers appreciate the smoke and carbon monoxide detectors. They find them reliable with no false alarms. The detectors have photoelectric, ionization, and chemical sensors. The 10 year backup battery is also appreciated.

"My entire house is hardwired with this model. Nice that it has the CO2 detector as well. No false alarms and no worrying about a battery." Read more

"...lets you know the unit is active and the smoke detection technology reduces the number of nuisance alarms...." Read more

"Expensive, but the only one WIRED with photoelectric, ionization, chemical sensors and a 10 year battery for backup...." Read more

"These smoke detectors are awful...." Read more

6 customers mention "Replacement value"6 positive0 negative

Customers find the product a good replacement for old units and expired smoke and CO2 detectors.

"Serves as good replacement for my expired smoke and co2 detectors...." Read more

"Perfect replacement! Exactly what I needed and easy to install!" Read more

"Perfect replacement" Read more

"Easy Replacements for old units..." Read more

29 customers mention "Functionality"18 positive11 negative

Customers have mixed opinions about the product's functionality. Some say it works great, while others report issues like the plate needs to be replaced. The installation process is described as easy and the product is tested properly. However, some customers report that the alarm never worked during an inspection.

"...This one allows very limited movement up or down. Obviously, no impact on function and who really cares, but to a constipated person like me, it..." Read more

"Stopped working after 2 weeks...." Read more

"...Bought 4 (one on each floor + garage). They work great and they Don't TALK!!" Read more

"Works good. Battery life is expected to be lifetime but we wll know thats a crock. They are extremely loud. Operate in sync with others...." Read more

27 customers mention "Battery life"14 positive13 negative

Customers have different experiences with the battery life of the gas smoke fire alarm. Some say it lasts 3 years, and the unit is sealed with a permanent battery installed. Others report that the battery doesn't last, starts beeping indicating it's dead, and cannot be replaced.

"...No false alarms and no worrying about a battery." Read more

"...Since there are no "replaceable" batteries, and because you can't otherwise turn it off except by using the destructive key (included!),..." Read more

"...They are easy to install and the notion of the 10-year battery sounds great, but, I’ve already had to replace 4 of these detectors in just over 5..." Read more

"...What's "new" about the new device is that the backup battery is no longer replaceable -- it's said to last 10 years, but your mileage may vary..." Read more

24 customers mention "Value for money"11 positive13 negative

Customers have different views on the product's value for money. Some find it a good product with reasonable prices and 10 year backup batteries. Others feel it's overpriced, has short life for the price, and has false alarms and replacement fees.

"Expensive, but the only one WIRED with photoelectric, ionization, chemical sensors and a 10 year battery for backup...." Read more

"...USI can do do better. The device itself is fine, but the design of the mount is awful...." Read more

"...and the prices have only gone up. This product has a 10 yr. expiry date, so this must be replaced after 10 yrs., even if it functions well...." Read more

"Great product and easy to install with a long battery life" Read more

37 customers mention "Alarm frequency"0 positive37 negative

Customers are unhappy with the alarm frequency. They report that the device beeps frequently, chirping like it needs replacement, and causing constant false alarms throughout the night. Some customers also mention that the detectors trigger after broadcasting.

"...It’s very loud and startling. It did shut off after a minute or so though so all is well." Read more

"...EXCEPTIONAL at picking extremely inopportune times to trigger false early-detection alarms, and usually in the middle of the night...and then you..." Read more

"...The timer on my phone shows that the detector will chirp nearly every hour and has for the past 28 hours, as I hunted down the original instruction..." Read more

"...All in all, I think that we have had false alarms from all 7 alarms. BTW, read the other 1 star reviews that discuss these problems!!" Read more

21 customers mention "Durability"0 positive21 negative

Customers are unhappy with the durability of the product. They mention it fails after six months, and some have failed within a year or less. Some customers say the product is not as advertised, and they will not buy it again.

"...It’s very loud and startling. It did shut off after a minute or so though so all is well." Read more

"...The alarm was manufactured in 2018 so it failed within 06 years of residential use...." Read more

"...The length of time this lasted is disappointing, and I look forward to days of sleep ahead...once I rip the thing out off the ceiling." Read more

"...The new one lasted exactly two months! It started giving me the two beeps, indicating low battery life...." Read more

Only one of its kind, but someone is off plumb.
4 out of 5 stars
Only one of its kind, but someone is off plumb.
Expensive, but the only one WIRED with photoelectric, ionization, chemical sensors and a 10 year battery for backup. I did not want to risk middle of the night chirping on a low battery. After a two hour effort to find the circuit breakers for the two existing smokes, I found the replacement of the existing plug no issue, but the holding bracket instructions absurd. A simple "top" printed on the plastic would have been so easy to do. The top of the installed unit (when the text is horizontal) is ~10 degrees rotated off plumb. The previous unit had a bracket that you could rotate to plumb. This one allows very limited movement up or down. Obviously, no impact on function and who really cares, but to a constipated person like me, it was unnecessary and undisclosed.
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Top reviews from the United States

  • Andy
    5.0 out of 5 stars Works a designed
    Reviewed in the United States on October 21, 2024
    Verified Purchase
    My entire house is hardwired with this model. Nice that it has the CO2 detector as well. No false alarms and no worrying about a battery.
    Helpful
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  • CLB
    5.0 out of 5 stars Be prepared if dinner is burned
    Reviewed in the United States on December 28, 2019
    Verified Purchase
    Had this a few months with no complaints. Found out it worked tonight when my husband made dinner...

    It’s very loud and startling. It did shut off after a minute or so though so all is well.
    Helpful
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  • HomerSaysDoh
    5.0 out of 5 stars 10 year battery life and no hassles
    Reviewed in the United States on July 20, 2023
    Verified Purchase
    I upgraded our smoke alarms with the USI 10 year battery alarms. With the added CO along with smoke detection, I feel secure with this unit in our furnace room. Green LED lets you know the unit is active and the smoke detection technology reduces the number of nuisance alarms. Installation was as easy as replacing 3 wire nuts and a new mounting plate.
    Helpful
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  • Jeff
    1.0 out of 5 stars Constant false alarms, and ALWAYS only in the middle of the night.
    Reviewed in the United States on May 10, 2023
    Verified Purchase
    These smoke detectors are awful. I purchased a dozen or so because they were what was in the house that we bought, and you just replace the detector instead of the batteries. I can't say how good they are at detecting smoke or carbon monoxide, because we've never had either in the house, but they are EXCEPTIONAL at picking extremely inopportune times to trigger false early-detection alarms, and usually in the middle of the night...and then you have to get up, find which detector is beeping (because it beeps at 60 second intervals *sometimes*) and either hope that wafting it with a towel gets it to stop beeping, or else you must completely uninstall the detector and eliminate it from your home. Since there are no "replaceable" batteries, and because you can't otherwise turn it off except by using the destructive key (included!), it's just going to keep going on and on and on.

    Seriously, of the twelve or so detectors I purchased with a "10-year life", I've discarded approximately half of them in the two and a half years since purchase and install. Additionally, I've now discarded two of those detectors office-space style because of how egregiously offensive they've become, including the latest one about ten minutes ago that decided to start a false-alarm sequence in my 3-month old's nursery on the first night in three that I finally thought I was going to get a half-decent night's sleep, and yet here I am, at 11:52 pm, writing this review, to hopefully warn you all to not touch this product with a 39 and a half foot pole.
    20 people found this helpful
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  • Eclect
    4.0 out of 5 stars How do you rate something you don't want to have to use?
    Reviewed in the United States on December 8, 2018
    Verified Purchase
    I had an old smoke / CO detector that seemed to be signaling low battery. Turned out the battery was fine. Website said replace after 10 years because the sensor deteriorates. (True that it will deteriorate, but I didn't look up the half-life of whatever radio-isotope is used in the sensor to see whether that had any relationship to 10 years.) So I purchased what looked to be the closest model to the old one, and this was it. Came with wiring harness that had sockets in the right place, but different coupling mechanism. Being too lazy to turn off the power, I tried the old harness in the new device, and it mated properly. So that's good.

    What's "new" about the new device is that the backup battery is no longer replaceable -- it's said to last 10 years, but your mileage may vary depending on the reliability of your utility company. AND ... (drum roll) ... the unit is now programmed to put itself out of service after 10 years, so there is no option about replacing. Planned obsolescence at it's finest!

    All that said (somewhat tongue in cheek), this is something that you both want to be very reliable but never have to find out whether or not it is. So if tomorrow I severely burn the toast and it doesn't go off, I'll re-rate it 1 star, but if tonight it wakes me up to tell me that I closed the fireplace flue prematurely, I'll up it to 7. Hence, 4 stars on average, with hopes of a very low standard deviation.
    7 people found this helpful
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  • L. Kumar
    5.0 out of 5 stars These worked flawless
    Reviewed in the United States on December 17, 2023
    Verified Purchase
    I had 2 bad ones chirping needed to be replaced.This model was the one that I needed and installation was a breeze.No more chirping.
    Helpful
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  • Mark S.
    5.0 out of 5 stars Terrible Mount; You Can Do Better USI!
    Reviewed in the United States on August 21, 2020
    Verified Purchase
    While this allowed me to use the screws and box already installed, it was very difficult to attach the unit to the mount. The twist and tabs that hold the unit to the mount are tough to make catch. I found the easiest way is to not screw the mount so closely to the ceiling (back out the screws a bit) so that the mount can "pull out" a little when trying to screw the unit onto it. USI can do do better. The device itself is fine, but the design of the mount is awful. The reason I bought it was to replace some existing 1204s and they recommend per code now to put CO detectors at LEAST in the hallway outside each sleeping area. I would have put these in the bedrooms too but they are such a bear to insteall due to the mounts I just replaced the smoke/fire detectors that these are compatable with (1204s) with the same model. So USI got my money to buy all their products, but disappoints in being able to go all out due to bad design on the mounts.
    One person found this helpful
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  • Perry L. Bearden Jr
    3.0 out of 5 stars Battery life is not 10 years.
    Reviewed in the United States on January 11, 2025
    Verified Purchase
    I have 9 of the MIC1509S detectors installed in my house. They are easy to install and the notion of the 10-year battery sounds great, but, I’ve already had to replace 4 of these detectors in just over 5 years.
    One person found this helpful
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