The Universal Security Instruments Hardwired MIC1509S 3-in-1 Smoke, Fire and Carbon Monoxide Smart Alarm provides 10 years of continuous protection against three deadly threats within the home. New patented Universal Smoke Sensing Technology offers the benefits of both photoelectric and ionization alarms in one device to protect against fast flaming and slow smoldering fires. This alarm also features protection against the silent killer - carbon monoxide - making it a 3-in-1 device. The ideal addition for new or replacement installations, this maintenance-free alarm is suitable for houses, apartments and mobile homes in every room.
This USI Combination Alarm utilizes a sealed back-up battery (included) that will never have to be replaced throughout the life of the alarm, giving you a decade's worth in peace of mind even in the event of a power outage. Permanent Power battery backup also saves money from battery replacements (up to $38.00 over the 10-year life of the alarm), eliminates annoying low battery chirps and helps the environment by reducing environmental waste from disposed batteries. This alarm features microprocessor intelligence to completely eliminate nuisance alarms, a single silence/test button to quiet a non-hazardous alarm and an end-of-service life warning that sounds when it's time to replace the alarm (approximately 10-years from activation).
This USI Alarm conforms to UL217 and UL2034 standards. It is also California State Fire Marshal approved and Federal Housing Authority (FHA) approved to exceed industry standards. The Universal Security Instruments MIC1509S 3-in-1 Smoke, Fire and Carbon Monoxide Smart Alarm comes with a 10-year limited warranty.
Warranty: 10 year Limited Warranty on battery and alarm
Alarm Power Source: 120 volt hardwired & 10 year alkaline battery backup
Happy, happy customer. - 01/30/2018
Reviewer: 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 - 01/05/2018
Reviewer: 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
Reviewer: Susan Apgar
Easy to assemble the perfect replacemement for the outdated one
Smoke, Fire & CO2 Detector - 11/02/2017
Reviewer: 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.
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 - 09/19/2017
Reviewer: Leonard Ancona
Product I purchased works great. I will purchase all my units from Universal
3in1 Hardwired Smoke, Fire and CO Alarm - 09/04/2017
Reviewer: Eric Schlegel
Excellent product! Covers all 3 threats and is easy to install!
trick question - 08/20/2017
Reviewer: 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.
Reviewer: Rick Rose
All should have 10 year battery
Replace existing units - 05/22/2017
Reviewer: 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 - 02/09/2017
Reviewer: 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!
Reviewer: Gerald E Simpson
No problems! Easy to mount and works fine.
Bedroom hallway sensor - 12/16/2016
Reviewer: 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 - 11/29/2016
Reviewer: 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 - 09/28/2016
Reviewer: Edward Hollis
Easy to install, great products, like the 10 year battery.
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