First Alert

First Alert SM100V-AC Interconnect Smoke Alarm with Battery Backup & Voice Alerts – 1-Pack

High-performance tools and home improvement made for confident daily results

$49.44

3 shoppers currently have this item in cart.

Low stock: only 5 left in inventory. Add to cart before it's gone.

Shop Pay installment options may appear at checkout where eligible.

Free shipping Secure checkout 100% refund eligible
Bundle & save Buy 2 and save checkout time

Premium tools and home improvement quality selected for United States (USA) customers.

Routine pack Build your routine pack (3)

Fast dispatch with always-free shipping and secure checkout on every order.

Free shipping

i

Free shipping on every order. Fast dispatch, tracked delivery, and secure checkout included.

Easy returns

i

Simple return flow and responsive support for eligible items.

Peak-demand shipping delays

i

During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

24/7 customer support

Questions before checkout? Our team is available and ready to help.

Share

Why customers choose TaskHolt Tools

Overview

Upgrade your home safety with the First Alert SM100V-AC interconnect hardwire smoke alarm. Designed for interconnected protection, it combines dependable sensing with clear, human voice alerts that help you quickly identify where danger may be.

What makes this alarm stand out

  • Advanced sensing minimizes cooking nuisance alarms while delivering early warnings for real smoke.
  • Voice alerts describe the situation and, when paired with other units, guide you to the general area of concern.
  • Latching alarm indicator visually flags the specific unit that triggered the alarm or shows a low battery
  • Battery backup keeps protection active during power outages, ensuring continued awareness.
  • Interconnected hardwire design ensures synchronized alert across all connected detectors for cohesive safety.

Practical use in daily life

  • In busy kitchens, the system helps reduce false alerts while ensuring you are notified if real smoke appears.
  • In common living spaces, voice and location cues assist during family mornings or late-night routines.
  • The battery backup provides reassurance when a neighborhood outage occurs or a main supply is interrupted.

Test, silence, and maintenance

The built in Test/Silence button supports quick checks of overall function and allows you to temporarily silence the alarm for up to eight hours if needed, helping you manage daily activities with minimal disruption.

What you get

This listing is for a single First Alert SM100V-AC unit, ready to integrate into your existing safety system and expand your network of protection.

FAQ

Q: How does interconnection benefit home safety?

A: Interconnected alarms trigger all linked units when one detects smoke, increasing overall awareness.

Q: Does this model work during power outages and include voice alerts?

A: Yes, it has a battery backup and clear voice alerts with location details for better guidance.