USI 2-in-1 Hardwired Smoke and Fire Smart Alarm with 10 Year Sealed Battery and Universal Smoke Sensing Technology (MI106S)
- 2-in-1 Universal Smoke Sensing and Fire Alarm
- Responds 87% faster to slow smoldering fires
- Responds quickest to fast flaming fires
- Hardwired alarm with a 10-year sealed battery backup that provides a decade of peace of mind even when the power goes out.
- Microprocessor eliminates nuisance alarms
- Power and alarm LED's
- Test/silence button
- Product end-of-service life warning
- Swift installation process
- Mounting hardware included
- Loud 85 dB alarm
- 10 Year Limited Warranty on both the battery and alarm
- Revolutionary Universal Smoke Sensing Technology
- Meets New Laws & Legislations - This alarm exceeds industry standards, and is listed to UL Standard UL 217 and is California State Fire Marshal approved.

- Warranty: 10 Year Limited Warranty on both the battery and alarm
- Power Source: Hardwired
- Alarm Battery: 10 year sealed battery
- Alarm Sensor Type: Universal Smoke Sensing Technology (Ionization & Photoelectric)
- Manufacturing Credits: ISO 9001 certified factory, UL listed & CSFM listed
- 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.
If you are interested in ordering a large quantity of items you may qualify for volume pricing discounts. Volume Discount Pricing is a great way for customers to save big on large, bulk orders of most items available in our store. Please send a bulk order request to our friendly sales staff so they may create a quote and provide personal service for your order! You will receive a response within 1-2 business days and our office hours are Monday through Friday, 8am-5pm CST.
- Let us know what products & the quantities you are interested in.
- Get a detailed quote from a dedicated sales rep.
- Our warehouse ships directly to you.
- You enjoy the savings & are now a preferred customer.
125 Customer Reviews
5 Overall rating
USI Hardwired 2-in-1 Universal Smoke Sensing Smoke and Fire Smart Alarm Reviews
Sabrina B
June 14, 2023Replacement units
Easy to replace my 10 year old units. I called in and someone helped me to ensure that I purchased the correct units. Thank you!
John C
February 24, 2023replacement
Ordered 4 smoke detectors w/10 year battery. Process was simple delivery was quick and installation went without an issue. My second time dealing with Universal and I will continue to purchase from them.
Brooke B
December 29, 2022Just what I needed
John N
December 2, 2022Easy installation, no false alarms
I installed two of these as replacements. The installation was simple and we haven't had any false alarms.
Terry G
November 29, 2022Great product. Change every 9-10 years instead of changing batteries every 6 months. Easy to change out old inefficient alarms. Once installed, future replacements take 1-2 minutes to install
Edward S
November 4, 2022Excellent Customer Service
When I called to replace my 18 year old hard wired alarms, the agent was extremely helpful regarding both my options and how to do the install myself. Referred me to a Youtube video... shipment came right away at a price lower than I expected.
John A
October 10, 2022Hardwired Smoke Alarm
Item was purchased as a replacement for an expired unit. Unit installed exactly like the one replaced and is working as discribed. I especially like the 10 year sealed battery.
Joseph C
September 27, 2022Easy replacing connected devices
In less than 1 hour I took down 8 old USI devices and replaced them with new ones. Love the 10 year sealed battery, no more semi annual 9v battery replacement.
Sastry D
September 12, 2022prompt service easy to install
Came on time as states, and easy to install.
Anthony H
August 18, 2022Perfect for Multi-family
These are the perfect alarm for multi-family units. Tamper proof 10 year batteries and tamper proof mounting. Just set them and forget them, until they tell you it's time to change the alarm 10 years later.