A white smoke alarm with a square shape, featuring test/silence and battery buttons and a speaker grille in the corner.

Gentex S Series SR Hard Wired Smoke Alarm w/ Relay

by Gentex

$130.00, see price history

Price is what the vendor listed when last checked. Confirm it with the vendor before buying.

Setup with instructions Because it is hard-wired and the relay has to be connected to another alert device, this takes more than plugging it in. A family member who is comfortable with basic electrical work can follow the instructions and finish in about an hour, but a licensed electrician is a smart choice for anyone who isn't comfortable doing that. A professional is not required.

What it is

Summary

AI-generated from vendor-published content · October 1, 2026

This is a hard-wired photoelectric smoke alarm with a built-in relay, so it can trigger other equipment when smoke is sensed. The relay is how people who can't hear a standard alarm often get a strobe or bed shaker to go off too. It also sounds its own 85 dBA horn and keeps working on a 9V battery if the power goes out, with the relay still active on battery. It connects to a standard junction box and can link with other Gentex tandem-capable smoke alarms, so it is a good fit for a home or building where wired fire protection is already planned. The alarm alone won't give a visual or vibrating signal; you need to wire the relay to a compatible alerting device.

Getting it

Many states lend devices like this for trial periods, free or at low cost — find your state's AT lending program.

Where to get it

Diglo Visit
$130.00

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How to fund this

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Details

Quick Facts Catalog facts · auto-generated
Type
Addresses
Platform
Age range
Complexity
Setup with instructions
Price
$130.00
Funding
  • Medicaid waiver
  • Out of pocket

What setup looks like

  • Out of the box
    Test the alarm with the push-button self-test once it is mounted and powered to confirm it sounds.
  • With a guide
    1. Turn off power at the breaker, then connect the quick-disconnect wiring harness to your home's wiring and attach the mounting base to a standard junction box.
    2. Wire the relay to your strobe, bed shaker, or other alert device, and set the relay operation as the instructions describe.
    3. Add the 9V battery, restore power, and run the self-test and functional test. Allow about 30-60 minutes if you are comfortable with basic wiring; a licensed electrician is a good idea if you aren't.

Sources & fine print

Vendor facts (name, price, platforms, vendor link) sourced from Diglo — view on vendor site (opens in a new tab); last checked October 31, 2026.

Classification & description AI-generated from vendor-published content on October 1, 2026 · confidence: high. Vendor specs may lag; verify before relying on details in a clinical or funding artifact.

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