USI 3-in-1 Hardwired Smoke, Fire and Carbon Monoxide Smart Alarm with 10 Year Tamper-Proof Sealed Battery (MIC1509S)
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- 3-in-1 Smart Alarm provides 10 years of continuous protection against fast flaming fires, slow smoldering fires and carbon monoxide
- Sealed battery (included) will never have to be replaced throughout the life of the alarm
- Revolutionary Universal Smoke Sensing Technology
- Features microprocessor intelligence to virtually eliminate nuisance alarms
- Quick activation battery pull tab makes the alarm easy to install while the deactivation key makes the batteries safe for disposal
- Smart Alarm Technology Provides:
- Temperature & Humidity Compensation
- Self-Diagnostics to ensure alarm is functioning properly
- Superior Nuisance Alarm Resistance
- 10 Year Product End-of-Service Life Warning
- Eco friendly-reduces environmental waste and eliminates disposal of up to twenty 9 volt batteries
- Conforms to UL217 and UL2034 standards
- California State Fire Marshal Approved
- 10 Year Limited Warranty on both the battery and alarm
- Model MIC1509S is a direct replacement for models USI-7795 and MICN109 (excluding natural gas sensor). Uses same/existing wiring harness (Mounting bracket change required).
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 detector 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 that covers both the battery and alarm.
- Warranty: 10 Year Limited Warranty on both Battery and Alarm
- Alarm Power Source: 120 volt hardwired & 10 year alkaline battery backup
- Alarm Sensor Type: Universal Smoke Sensing Technology (Ionization & Photoelectric) + Electrochemical CO Sensor
- Manufacturing Credits: ISO 9001 certified factory, UL listed & CSFM listed
- Replaces model MICN109: Adds 10yr battery backup but does not have natural gas detection. (Please note: mounting bracket is different.)
- Replaces model USI-7795: Uses same wire harness and plug. (Please note: mounting bracket is different.)
- Packaging: Easy Open Box Packaging
- Product Dimensions (W x H x D): 5.75 x 5.75 x 1.75 in.
- Product Weight: 0.49 lbs.
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Customer Reviews
4.9
Average score based on 152 reviews
- Reviewed: 12/02/2022 by Todd D
Works as expected
Bought to replace an existing USI smoke and CO detector that had reached its ten year end of life. Only issue is that I had to use the new mounting bracket since the new unit was not compatible. However, the three-wire connector from the old one did fit into the connector for the new one. Has been in service for several weeks with no unexpected alarms. Would buy again.
- Reviewed: 10/19/2022 by Kimberly R
Smoke alarm
Dry good alarm
- Reviewed: 08/25/2022 by John N
CO detector
Excellent product. Easy to install.
- Reviewed: 08/03/2022 by Michael F
Easy fix
My house is now 10 years old and my smoke detectors are beginning to fail.theUSI3 was easy to install. I no longer have to worry about changing batteries
- Reviewed: 07/13/2022 by John H
As expected
Replaces obsolete USI detectors with no problem
- Reviewed: 06/28/2022 by Greg C
Replacement 3-in-1
Great product with 10 year battery!!! Easy to replace aged product 10 years old. A ladder and a screw driver was all that was needed. Better now! Thanks!
- Reviewed: 05/18/2022 by Ruth C
New smoke and CO2 detector
10 year sealed battery. Easy to install
- Reviewed: 04/29/2022 by Justin P
Easy to install and delivered in a timely matter
This is exactly what I needed. Is easy to install and also the expiration date is 10 years away. There was no damage to the package and it came within a few days after ordering.
- Reviewed: 04/18/2022 by Thomas K
Hardwired detector
Easy to install in existing electrical box, good directions. I like that it includes CO detection and both photoelectric and ionization fire detectors. I have 3 of these alarms installed.
- Reviewed: 01/22/2022 by George L
very easy to install, used as an replacement