Know exactly when every smoke & CO detector needs you – before silence turns deadly.
Sentinel tracks battery and end-of-life dates for every detector and pings you via email or text at the perfect moment.
60-second setup per detector
Works with any brand
Unlimited properties per account
Batteries die every 6-12 months, alarms expire in 10 years – most homes miss both.
Lifecycle Tracking
Log install date, location, and model once; Sentinel auto-calculates every critical milestone.
Smart Reminders
Emails and SMS land 30 days, 7 days, and same-day before batteries or devices expire – configurable per property.
Central Dashboard
Instantly view status of all detectors across homes, rentals, or units in one calm, color-coded list.
Protect family & guests while you sleep
Avoid landlord liability and code fines
Eliminate paper calendars & sticky notes
Peace of mind even when traveling
How It Works
1
Add Detectors
Enter install date, battery type, and room once.
2
Sentinel Calculates
Our engine maps manufacturer specs to your dates.
3
You Act on Alerts
Swap batteries or units when we say, done.
Homeowners
Never worry about your family's safety with automated maintenance tracking.
Landlords
Stay compliant across all properties with centralized maintenance schedules.
Airbnb Hosts
Ensure guest safety and avoid liability with proactive detector maintenance.
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