Check the listing for details. 3x Universal Security (3-Pack) Hardwired & 10-Year Battery Fire & Smoke Detector. Color: White, Condition: New, Made in China. Listed at 126.99 USD. You will receive 3 boxes of 3 alarms each box total of 9 alarms brand new boxes sealed The 3x Universal Security (3-Pack) Hardwired & 10-Year Battery Fire & Smoke Detector by USI Electric is a reliable and efficient smoke and fire alarm system for your home. With a power source of hardwired and a manufacturer warranty of 10 years, you can trust that your property will be protected for a long time. The alarm features a loud 85 decibel alarm, battery backup, easy installation, and advanced sensing capabilities with Multi-Criteria Detection. Additionally, it is equipped with features such as dust/paint cover and tamper-proof design for added security. This product is ideal for ensuring the safety of your home and loved ones.