Customer Reviews For The Universal Security Instruments Recreational Vehicle Smoke Alarm (SS-775)

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James Keefer

April 29, 2026

Keefer's Choice

recently purchased the USI Electric SS-775-12CC Battery Operated Smoke and Fire Alarm, and it is an exceptional value for anyone looking to secure an entire property. Replacing old units all at once provides great peace of mind, and having a full case ensured I had matching, reliable protection in every bedroom and hallway. These alarms are incredibly easy to install with the included mounting hardware, and the compact design looks clean on the ceiling. The ionization sensing technology is very responsive, providing early detection for fast-flaming fires. For a bulk set, the quality is top-notch and the price per unit is unbeatable!

James Sponagle

November 10, 2018

Verified Purchase

The Exact Replacement

I was hoping to find a close enough replacement for the worn out fire alarm in my RV. At USI I found the exact model number still made! It popped into the old holder, got tested and now I am good for another 10 years. Thanks USI.

The USI SS-775-12CC RV Smoke and Fire Alarm is ideal for RVs, campers, motor homes and other small or mobile living spaces. The ionization sensor on this smoke detector responds quickly to fast-flaming fires to protect your family against deadly threats in the home. The included 9-volt alkaline battery operates the detector and continues protection in the event of a power outage. The USI SS-775-12CC Alarm includes an audible low battery indicator, a cover to protect against contaminants and an alarm/power test button to ensure that the device is functioning properly. This USI Battery-Operated Ionization Smoke and Fire Alarm is fast and easy to install with all mounting hardware included and no wiring required.