Protect the rooms your smoke alarms can't.
Most home fires start in the kitchen, garage, attic, or furnace room — the exact places smoke alarms aren't built to go. A battery-free mechanical heat detector closes that gap, with nothing to unplug and no 2 a.m. battery change.
See your savings — free
Smoke alarms can't protect the rooms where fires start most
Per NFPA 72, smoke alarms aren't recommended for kitchens, garages, attics, and furnace/utility rooms — cooking fumes, dust, exhaust, and heat trigger constant false alarms. So homeowners leave those rooms unprotected. But those are precisely the high-risk areas where fires tend to ignite.
The fix is a mechanical heat detector: it reacts to a rapid rise in temperature, not smoke — so it works exactly where smoke alarms can't.
Highlighted = high-risk rooms smoke alarms aren't built for.
A mechanical heat detector — no batteries, no electricity
It can't be disabled by a dead battery, and it works where smoke alarms can't.
Battery-free & wireless-free
All-metal construction with nothing to power, charge, or replace. Nothing to fail.
Activates at 117° / 136° / 175°F
A fusible link triggers at the right temperature for each room.
100+ dB for 5 minutes
A loud, sustained alarm to wake and alert your household.
Built for high-risk rooms
Kitchens, garages, attics, furnace & utility rooms — placed by a pro.
25-year warranty
Plus a lifetime fire-replacement guarantee — if it ever activates in a fire, it's replaced.
Installed by a local dealer
Koken Home is your authorized TruWatch dealer — personal, accountable, local.
A whole-home fire-safety system — not à-la-carte parts
The best protection pairs photoelectric smoke alarms with mechanical heat detection — an approach supported by research from Texas A&M. We tailor a complete package to your home.
Mechanical Heat Detector
The signature product. All-metal, no batteries, no electricity. Activates at 117° / 136° / 175°F and rings 100+ dB for 5 minutes. Built for kitchens, garages, attics, and furnace/utility rooms — where smoke alarms can't go. 25-year warranty + lifetime fire-replacement guarantee.
Photoelectric Smoke Alarms
“Special Optics” photoelectric sensing (DeTech) sees smoke faster than older ionization units, with fewer nuisance false alarms.
Carbon Monoxide Detectors
Covers the silent, odorless threat and helps meet state and local CO-alarm requirements.
Fire Extinguishers
Round out your first-response coverage with properly placed, ready-to-use extinguishers.
Monitored Smoke Detection
DeTech system with 10-year lithium batteries, wireless signal to a base station that can auto-call the fire department, self-diagnostics with drift compensation, and location reporting for responders. May qualify for a homeowner's insurance discount.
Medical Alert
Senior fall protection — an adjacent whole-home safety add-on for the people you love.
Proven protection, backed by the numbers
25-year warranty
Plus a lifetime fire-replacement guarantee on the heat detector.
BBB A+ accredited
TruWatch holds an A+ rating with the Better Business Bureau.
1 in 5 alarms fail on power
The CPSC found ~1 in 5 smoke alarms had dead or disconnected power. A battery-free detector removes that risk.
Local authorized dealer
Koken Home — a real local team that stands behind the install, not an anonymous online retailer.
Protection starts at $249.
That's the value reference for the mechanical heat detector — and it includes a 25-year warranty, lifetime fire-replacement guarantee, and professional placement. Packages are tailored to your home, so we'll give you a real number for your space. Not ready to buy? Start with a free in-home safety evaluation.
Straight answers about home fire safety
Why can't I just use smoke alarms in my kitchen or garage?
Per NFPA 72, smoke alarms aren't recommended for kitchens, garages, attics, or furnace/utility rooms — cooking fumes, dust, vehicle exhaust, and heat cause constant nuisance alarms, so people remove or never install them. A mechanical heat detector responds to a rapid rise in temperature instead of smoke, so it works reliably in exactly those rooms.
Does the mechanical heat detector really need no batteries or electricity?
Correct. It's an all-metal device that activates with a fusible link at a set temperature — no batteries, no wiring, nothing to lose power. The CPSC has found that roughly 1 in 5 smoke alarms had a dead or disconnected power source; a battery-free detector removes that failure point entirely.
At what temperature does it sound, and how loud is it?
Models activate at 117°F, 136°F, or 175°F depending on the room, and ring at over 100 dB for about 5 minutes once triggered. We help place the right model in the right location.
Should this replace my smoke alarms?
No — it complements them. The strongest protection pairs photoelectric smoke alarms (which 'see' smoke faster, with fewer false alarms) with mechanical heat detection in the high-risk rooms. Research from Texas A&M supports this combined approach as a complete package.
Will this lower my homeowner's insurance?
It may qualify you for a discount — many carriers offer reductions for monitored detection and added fire-safety equipment, but discounts vary by carrier and location. Check with your insurer, and we're happy to provide documentation of what's installed.
What's the warranty?
The mechanical heat detector carries a 25-year warranty plus a lifetime fire-replacement guarantee — if it ever activates in a fire, it's replaced. As your local authorized TruWatch dealer, Koken Home stands behind every installation.
Protect the rooms your smoke alarms can't.
Request your quote or a free in-home safety evaluation — and protect what matters most.
See your savings — free
Koken Home is an authorized dealer of TruWatch residential fire-safety products.