USI 3-in-1 Hardwired Smoke, Fire & Carbon Monoxide Smart Alarm with 10 Year Tamper-Proof Sealed Battery (MIC1509S)

Hope This One Lasts Longer!

Reviewed: 05/31/2021 by Robert C

My home was built 2.5 years ago. There are a total of 5 smoke detectors in the house, with this one being the control. It's located in the hallway leading in from the garage, and is directly in front of the laundry room. The one that the builder installed failed about one year after I bought the house from the builder. I got a replacement from a local home improvement store, and it failed about a year later. It had a 2017 date on it, which I don't know whether that is the expiration date or the manufacture date. So I bought the replacement directly from USI. Hopefully it will last closer to 10 years.

Great product

Reviewed: 05/29/2021 by Michael M

Ordered a replacement smoke alarm and it was delivered in 3 days, easy to install and works perfectly.

Quick delivery and installation

Reviewed: 05/18/2021 by Rob v

Items were delivered on time - easy install. All as expected.

All set for 10 more years

Reviewed: 04/30/2021 by Theodore T

very easy to install

Carbon monoxide detector

Reviewed: 04/26/2021 by Lou B

They arrived as expected and 100% satisfied with the product.

Outstanding product

Reviewed: 04/07/2021 by Jeffery M

Very good product. Easy to install and has 10 year battery

Mr

Reviewed: 03/18/2021 by nabil ghabrial

Excellent product

Reviewed: 03/18/2021 by JOHN RODTH

Easley installed as a replacement unit

Easy

Reviewed: 03/08/2021 by Tramaine Tucker

Thank you. I have been looking for a replacement for awhile and glad I found your site. Perfect

Great Service

Reviewed: 03/08/2021 by LaMonte Thomas

Fast delivery, great pricing and easy to install.

Great combo alarm

Reviewed: 03/01/2021 by Robert Kanewske

Received exactly what I ordered and very quickly. Feel protected!

Excellent product

Reviewed: 02/09/2021 by Brian Thunstrom

This is the perfect product for your home and one of the only 3 in 1s in the market. Both types of smoke/fire detection and carbon monoxide all in one unit. All hardwired and with a ten year backup battery. You can't go wrong with this.

Excellent product.

Reviewed: 01/25/2021 by Catherine McInnis

I receive my items on time. They were exactly what I ordered.

Good Alarm / Detector to Harness Quality Questionable

Reviewed: 01/18/2021 by Adam Levin

I gave this a good rating because it seems like a good alarm from a technical perspective the alarm alerts for smoldering and flaming fires and carbon monoxide. I purchased two of these alarms to replace one smoke alarm that was no longer working and one that was coming up on 10 yrs from installation. I wanted interoperability between the other hard wired smoke alarms in my house US1204 and the newly purchased smoke alarms. After testing it appears that the interoperability does work. I found that attaching the detector to the harness was a bit difficult and design was cheap. In fact, one of the prongs broke off the back of the detector and I had to re-attach the prong before attaching to the harness. The US1204 seemed to have a better harness / attachment design. But it was quick to uninstall and install other than the one issue with the prong breaking off. Overall, would give the detector a good rating.

Pleased

Reviewed: 01/18/2021 by Sajish Jacob

Good quality. Easy installation.

Reviewed: 01/14/2021 by David Farber

easy to swap them out came right away

Reviewed: 01/12/2021 by Jack Rogers

Soo far so good. glad that i will not have to change batteries.

USI 3 in 1 detectors

Reviewed: 01/07/2021 by Stephen Gonzales

Received and installed 3 units. No install issues and shipment was super fast. Awesome fire / CO along with 10 yr battery and hardwire connections. Hopefully will not touch these for ten years other than weekly testing!

Easy to Install

Reviewed: 11/26/2020 by Dr Jack Rink

Through guidance from your company were were able to replace our old USI 11 year old units with the exact new ones to be able to only have to plug them in without the wiring task. Great support! Clear Instructions too.

Reviewed: 11/19/2020 by Eric Bartz

Easy to deal with the on line store. Product arrived quickly, and matched up to the existing fitting.

Reviewed: 10/27/2020 by Eric Bartz

Easy to deal with the on line store. Product arrived quickly, and matched up to the existing fitting.

Easy replacement

Reviewed: 10/27/2020 by Regina Hamlin

Our previous alarm was 10 years old and had died. The model number was a match for this unit to integrate with our existing other alarms in the house. Did not have to change anything other than two screws to remove the old mount plate and put the included mount plate up. Plugged our wiring harness into the unit, mounted, and works great! Easy and affordable replacement.

Reviewed: 10/02/2020 by Rob Warner

Easy install

Nice upgrade

Reviewed: 09/27/2020 by Michael Kupneski

Easy upgrade for my old smoke detector.

Great Smoke Detectors

Reviewed: 09/21/2020 by Lewis Morant

Great detectors, the second house I have used them in. Easy to install and you can't beat the 10 year sealed battery.

MIC1509S

Reviewed: 09/19/2020 by Steve Pirozzi

Packaging was not very durable but luckily the alarm was not damaged during shipping. Easy to install.

Perfect Replacement

Reviewed: 08/27/2020 by Kevin Thorp

Purchased as replacement for 12 year old alarms that were no longer working. Easy to install and work great! Peace of mind with little work at a reasonable price.

Quick Install

Reviewed: 08/25/2020 by Brandon

Replaced existing 10+ year old hardwired USI detectors with no rewiring, just needed to swap the base plate. Quick and easy.

Combo CO and Smoke Alarms

Reviewed: 08/06/2020 by Carolyn Gibbs

Would have Plugged into the old sockets, but were different so had to take the wires loose and put in the new ones that came with these. The red light is supposed to blink every two minutes, but it doesn't. The people at the company said that was OK and it works so am using them.

My Order

Reviewed: 08/03/2020 by John Wilson

I was very well pleased with both the service and the product from the Univetsal Security Store.

Reviewed: 07/28/2020 by John Bacolo

Replaced older unit perfectly!

Mrs.

Reviewed: 07/13/2020 by Estella Woodard

My order for the smart alarm was received promptly and very well packaged. My smart alarm is currently in use and operates very efficiently.

Quick and easy

Reviewed: 07/10/2020 by Steven MacDonough

Updated to new 3-in-1 unit with 10-year battery life. Ordered on website, delivery was very quick and installation easy.

Es La Ley!

Reviewed: 06/26/2020 by ANNE RICH

Selling my home and have to replace all my smoke alarms with these babies. A little expensive but set em and forget em for 10 years. Think of all the batteries you won't have to change!

No batteries to replace

Reviewed: 06/15/2020 by James Penuel

The primary feature that made me look at these devices is the 10 year battery. As I get older, I am more reluctant to climb ladders to replace batteries in the smoke detectors. This is a great solution.

Works!

Reviewed: 06/10/2020 by Valerie Bruchmiller

Can't complain. Easy installation

Perfect Replacement Multi Smoke Alarm

Reviewed: 05/27/2020 by Patrick J Lee

Plug n Play Replacement of my old Smokie that is no longer made. I changed out the base plate at the ceiling, plugged in the power connector and all was good. Also, pull tab for battery pulled prior to installing.

Excellent

Reviewed: 05/26/2020 by Nick Driggers

Great product and easy to install.

Reviewed: 05/22/2020 by Karen Tucker

We bought these to replace the ones in our house and were very pleased. When they arrived, my husband asked what I'd ordered this time. I had no idea what it could be because I wasn't expecting these to come in for at least another week. Shipping was VERY fast. Easy instillation and overall very pleased with the purchase.

Does the job

Reviewed: 05/21/2020 by JOSEPH NUGENT

Direct replacement for existing unit. No issues on installing.

Replacement for old unit

Reviewed: 05/10/2020 by Steven Roberts

This replaced a 10 year old smoke alarm. Nice upgrade with the combo unit. Appreciate the larger base.

Reviewed: 03/11/2020 by Kevin Null

Easy installation and testing. Especially value the 10 year battery.

Home Smoke Alarm Replacement

Reviewed: 02/19/2020 by William Hackett

All of the smoke alarms in my house had expired. Several were out of service due to false readings. These were updated direct replacements. The only reason I gave a 4, instead of a 5 on this review is because, one of the models used in my home had updated, and it is more difficult than it should be to cross-reference to a newer model number. New installations wouldn't have that issue.

Reviewed: 02/05/2020 by Tom Cole

Nice looking units. Come with very nice paint shield installed that is easy to remove. Only negative is I liked the mounting base on my older USI smoke detectors better. They were stronger and deflected less when tightened and the screws from standard 4 octagon box fit the plate better.

unit 2

Reviewed: 01/05/2020 by ROSARIO DIPRIZIO

Very easy to install. We had to replace the mounting plate by partially unscrewing 2 screws that did not have to be entirely removed. Next, turn the old plate and replace with the new mounting plate. Screw in the new plate, then plug in and attach the new unit.

Positive

Reviewed: 01/02/2020 by DAVID OBERRY

Worked well as described

MIC1509S

Reviewed: 12/16/2019 by Joseph Griffin

I am just installing these today so I cannot comment on false alarms or performance issues. However, I found it easy to replace my old USI hardwired units with the new units - the old and new use the same connector, so I only needed to install the new mounting plates.

Smart Alarm

Reviewed: 11/11/2019 by E. Blackwelder

Very pleased with easy to install smoke alarm/carbon monoxide sensor. Will be ordering another for my home.

Pleased-2

Reviewed: 11/08/2019 by John F Russo

excellent quality and simple installation

Nice

Reviewed: 10/25/2019 by Drew Mason

Everything is good.

MIC1509S Review

Reviewed: 10/22/2019 by RL

It's only been a couple of weeks since I've had it installed, but everything has been good so far. I chose this model because it was compatible with the previous ones locking mechanism. The built-in battery was attractive - I just hope it lasts 10 years as advertised. 10 years without that low-battery chirping!

Easy installation

Reviewed: 10/07/2019 by Dwayne Davis

Great price, no battery for 10 yrs and simple quick install

Satisfied

Reviewed: 09/30/2019 by David Scheib

Very confident in quality and performance of important safety equipment in our home.

Reviewed: 09/23/2019 by Al

Product came as order and fit perfectly.

hgreat instructions and great product

Reviewed: 09/17/2019 by George Kramer

I had it up and working in less than 5 minutes. Truly a quick replacement of the old to the new. Good job and great product.

Smoke, Fire CO Detector

Reviewed: 09/17/2019 by Ronald Carver

A must have great product for a great price.

super, easier to install

Reviewed: 09/09/2019 by annette russo

We are elderly, and have ten and twelve foot ceilings where these detectors are installed. The fire dept gives us free service, and it took exactly one minute to install. Great!!!

Direct Replacement of 1990s Smoke Detector

Reviewed: 09/05/2019 by Michael Bohun

Replaced two hard-wired vintage 1990 smoke directors with two new USI 3-in-1 hardwired smoke, fire and CO Alarms. All hardware was included with 3-wire plug to detector. Detectors work in tandem if one sounds on main floor the one in the basement also sounds! The 10 year battery makes for worry free operation plus it has 3-in-1 detection.

Easy change over

Reviewed: 08/23/2019 by Jack Welsh

Needed to replace 10 year old USI-7795 alarms when 2 of them would sound a double beep every couple of minutes. Realizing they should be replaced, the MIC 1509S was an easy change to just plug-in after changing the mounting bracket. All new an working as designed, good for 10 more years.

Nice upgrade...

Reviewed: 08/13/2019 by Hansen Su

Easy to install, clean appearance, don't have to purchase a separate CO2 alarm and saves me from buying and replacing batteries every year. No down sides so far!

Reviewed: 08/01/2019 by Melody Bacon

Web site easy to use, received item as ordered.

Very pleased

Reviewed: 07/22/2019 by John Harper

Ordered combination fire/carbon monoxide to replace outdated fire only alarm. Very pleased with product.

Very easy replacement of old alarm

Reviewed: 06/25/2019 by Joe Bass

Our 12 year old combination smoke and carbon dioxide detector finally quit working as evidenced by a repetitive chirping even after installing a new 9 volt battery so I went on a search for a compatible replacement. After googling my old unit it led me to USI's website where it listed this new unit for consideration. I was most concerned about minimizing the wiring changes needed since I would be perched on a 12 foot ladder and this unit used the exact same wiring harness which meant all I had to do was replace the plastic base that came with the unit and plug in the wiring connector. Working like a charm!

chirping alarm

Reviewed: 06/19/2019 by Joe

We have a new home and this unit keeps chirping throughout the day as well in the night. I had to disconnect the unit. 1.5 years old

Carbon detector

Reviewed: 05/20/2019 by Edmund Armstrong

Excellent detector and very professional staff at universal

So far, so good

Reviewed: 04/30/2019 by Matthew Szenher

Only had the product for a few weeks, but it works as advertised so far.

Great buy!!!

Reviewed: 04/23/2019 by YESENIA VALLE

I needed to buy new ones, the old ones were 10 year old. They work exceptionally well.

Reviewed: 04/17/2019 by Mark Crain

Removed old detector and plugged new one in. Exactly what I was looking for! Great company to work with!

Reviewed: 03/25/2019 by Greg Black

Replaced all 7 outdated smoke alarms with this USI 3-in-1 and am very happy. It was very easy to install and only had to change out the base and wiring on 3 of them.

New all in one detectors

Reviewed: 02/19/2019 by Edward Bowleg

Received the products ordered was able to install both in about twenty minutes, insured that they sync with the other five and the job was complete. Will order more when the time comes again.

Perfect

Reviewed: 01/26/2019 by Sam Dolinsky

The sealed 10 year battery was a selling point for us in addition to the breadth of protection. No more chirping or climbing the ladder. Great support from on line and store reps to choose the right units.

Reviewed: 01/17/2019 by Jean Monaghan

Easy to install. Makes me feel safer knowing I have co detectors.

MIC 1509S

Reviewed: 12/31/2018 by ARNOLD WILLIAMS

NO PROBLEMS INSTALLING THIS UPDATED MODEL OF MY OLDER ALARM. THE EXISTING WIRING PLUGGED INTO THE MIC 1509S EASILY.

updated

Reviewed: 11/20/2018 by Linda Neville

We did not have a co detector downstairs and our upstairs one had reached its life limit so we added a hardwired co and they work great! Thanks for great service and product.

Replacement of 14 yr old alarm

Reviewed: 11/19/2018 by Robert Clapp

Replaced a 14 yr old Smoke, Fire, Carbon Monoxide Alarm. Great that the new Smart Alarm has sealed backup battery. No more replacing batteries...Yeah.

6-pack combo detectors

Reviewed: 11/13/2018 by Rachel Duncan

Product came on time and in good working order. Electrician had some difficulty installing them, but was able to work it out. Good value.

Smart Alarm

Reviewed: 10/26/2018 by Rafael Acevedo

Received the alarm, pulled the tab. Pulled the old ring from the ceiling and replaced it with the new ring. Installed the alarm, plugged it in and done!

Order Processing

Reviewed: 10/18/2018 by Tony Ellis

Order processing was straight forward. Selected the type of detector I wanted and submit my payment. Detector arrived ahead of schedule. Installation took all of 5-mins and detector was up and running.

Good but is there a model with a battery as well as electrical connection?

Reviewed: 10/17/2018 by Benjamin Gantcher

It seems sufficient, but I'd prefer a model that can use a back-up battery in case of a power outage.

Reviewed: 09/13/2018 by Bethany Pinkley

Love the 10yr battery!

Reviewed: 09/06/2018 by William Blackburn

Replaced 9 volt battery one that would not clear carbon dioxide warning. So far so good. Fit in existing plate and connection

Review

Reviewed: 09/02/2018 by CORRINE ALGERMISSEN

So far so good. No chirping! Am happy!

Reviewed: 08/20/2018 by Bill Woolsey

Great product. Easy to install. Fast shipping.

Awesome product!

Reviewed: 07/26/2018 by Jeff Fogarty

I love these 3-in-1 detectors. With no batteries to change and backwards compatibility built-in with their previous models you can't go wrong!

Replace older sensors

Reviewed: 07/12/2018 by Don Rahaim

In just a matter of 20 minutes I was able to replace all of my older sensors 4 with the new 3 in 1 model. A quick change of the mounting plate and a pull on the battery tape and all was good to go.

MIC1509S

Reviewed: 07/11/2018 by Jorge Caliso

I bought two of these items and I already installed them in my basement. So far, they haven't been misbehaving.

Great Product

Reviewed: 06/29/2018 by Leah Jaggernauth

Fast delivery! Thanks.

Reviewed: 05/20/2018 by Victoria Hope

I have always been happy with the products and services when I order from you. thank you

Good upgrade

Reviewed: 04/07/2018 by David Herron

A good upgrade for older units

great customer service

Reviewed: 03/28/2018 by Roberta Bauer

I ordered from USI after not being able to find the device I wanted on other sites bad filters, incomplete descriptions. Even USI lacked some information, so I contacted customer service and received prompt and clear answers to my questions. I ultimately ordered 6 devices which we were able to install ourselves.

Good alarm.

Reviewed: 03/26/2018 by Justin Frederick

It was difficult to find a dual sensing alarm with CO and sealed battery. Glad I found this company. Great product. Easy to install.

Happy, happy customer.

Reviewed: 01/30/2018 by Linda Pinder

Easy installation and excellent quality. I can't say enough good things about USI products. Their customer service was very knowledgeable and quickly responded to my questions.

works good

Reviewed: 01/05/2018 by Kevin Graham

Hi, had to replace my detectors since they were starting to go off when I cooked. They were 10 years old. I ordered 2 iono detectors 3 photo detectors and 1 carbon monoxide one all 10 year sealed and wired ones. They all installed and worked good and solved my cooking problem. Also the customer service was very responsive and the items were shipped quickly A+. Kevin

Reviewed: 11/07/2017 by Susan Apgar

Easy to assemble the perfect replacemement for the outdated one

Smoke, Fire & CO2 Detector

Reviewed: 11/02/2017 by Ann Hirsch

When one of my smoke & co2 detectors needed to be replaced, I went online on the USI website. The model I had was no longer available. So I called and got help. I was given 3 choices for a replacement. I chose this one for the 10-year sealed battery. It's really annoying when those batteries go and the unit starts chirping. So far, I am very pleased.

Reviewed: 09/21/2017 by Tyler

Replaced 2 older USI smoke detectors with 2 of these units. Simple installation and great that they have a sealed 10 year backup battery! Very nice to have 3-1 detectors connected to the other units throughout the house!

USI 3-in-1 Hardwired Smoke, Fire & Carbon Monoxide Smart Alarm with 10 Year Tamper

Reviewed: 09/19/2017 by Leonard Ancona

Product I purchased works great. I will purchase all my units from Universal

3in1 Hardwired Smoke, Fire and CO Alarm

Reviewed: 09/04/2017 by Eric Schlegel

Excellent product! Covers all 3 threats and is easy to install!

trick question

Reviewed: 08/20/2017 by Peter Weiskopf

It's like, you got to lose to win. Or is it the other way around. My daughter bought her first townhouse. It had 5 USI 1204 units which were engraved that their lifetime expired in 1999. Well no sense in replacing the batteries. So I ordered a 5 unit box of the MIC1509S. They went in very easy didn't have to do any major surgery. Now do I have to wait for a fire or a CO event to rate these. Sorta hope that it doesn't come to this.

Reviewed: 07/24/2017 by Rick Rose

All should have 10 year battery

Replace existing units

Reviewed: 05/22/2017 by Mark Wheeler

This was as easy as it gets. The new units plugged directly into the existing wiring. The only piece I had to change was the plate as the dog ears are different with the new units. Will be buying some other replacements for smoke detectors.

Excellent product

Reviewed: 02/09/2017 by William Dunbar

I replaced six USI 5304s with the 1509s. It was easy and gave our home protection against carbon monoxide in addition to smoke and fire. During the install of the sixth detector, the battery pull tab broke. Customer service shipped out a replacement immediately and made the return of the broken product convenient. Im very pleased with the product and USI support!

Reviewed: 01/25/2017 by Gerald E Simpson

No problems! Easy to mount and works fine.

Bedroom hallway sensor

Reviewed: 12/16/2016 by Ross Au

Purchased this detector to replace the old bedroom hallway unit. Way more comfortable with the three in one design this detector has for the sleeping level of our home. The 10 year battery makes this a install and forget instrument. Just need to hit the test button on occasion.

Smooth install

Reviewed: 11/29/2016 by William Reupke

Local electrician quickly and easily replaced the existing 30-yr old interconnected detectors with the USI 3-in-1 detectors. Appearance of installation is very neat.

Second set from USI great product

Reviewed: 09/28/2016 by Edward Hollis

Easy to install, great products, like the 10 year battery.