# Universal Security Instruments 4-Pack Hardwired and 1-Year Battery Backup Smoke Detector with Photoelectric Sensor

**Brand:** [Universal Security Instruments](https://shop.coreranger.com/brands/Universal%20Security%20Instruments)
**SKU:** USI/SM/HWREP-4
**Price:** $108.97 · in stock
**URL:** https://shop.coreranger.com/product/universal-security-instruments-4-pack-hardwired-and-1-year-battery-backup-smoke-detector-with-photoe-334670777

## Specifications

| Spec | Value |
|---|---|
| Model # | USI/SM/HWREP-4 |
| Included | Batteries,Installation Kit,Mounting Hardware,Owner's Manual |
| Pack Size | 4 |
| Alert Type | Siren |
| Internet # | 334670777 |
| Returnable | 90-Day |
| Store SKU # | 1016025690 |
| Voltage (V) | 120 V |
| Power Source | Hardwired |
| Alarm Sensor Type | Photoelectric |
| Product Depth (in.) | 1.5 in |
| Product Width (in.) | 5.6 in |
| Commercial/Residential | Home |
| Alarm/Detector Features | Battery Back-Up,Hush Button,Light Indicator,Tamper Resistant |
| Certifications and Listings | ETL Listed |

## Description

Experience unparalleled protection with the USI Hardwired Smoke Alarm with Replaceable Battery Backup. Equipped with Sensing Plus Multi-Criteria Detection, this advanced photoelectric alarm accurately identifies both slow-burning and fast-flaming fires, ensuring early detection and rapid response. This hardwired alarm connects to other hardwired alarms in the home to provide comprehensive coverage throughout the space. An included replaceable 9-Volt battery ensures continuous protection even during outages. An End-of-life alert reminds you it's time to replace your smoke alarm after 10-years for uninterrupted coverage. Advanced technology reduces nuisance alarms, minimizing disruptions from activities like cooking. Should you experience a false alarm, easily silence it with the test/silence button. With UL certification, you can trust in the reliability and performance of USI Hardwired Smoke Alarms. Invest in peace of mind and protect your loved 1 s with this advanced home safety solution. With over 50-years of experience as a leader in home safety, USI provides reliable, long-lasting protection for your home.

• Hardwired smoke alarm with replaceable battery backup
• Easy installation, 10-year warranty on detector