How to Set a Safe Zone Radius
That Actually Works
Most safe zone frustration comes down to one number — the radius. Too tight and it never fires reliably; too loose and it triggers from three buildings away. Here's how to get it right the first time.
Last updated: July 2026 · 5 min read
Why Radius Is Trickier Than It Looks
GPS accuracy varies indoors
Inside a building, especially a large campus, mall, or apartment complex, GPS can be off by 20-50 meters — a radius that's too tight simply never triggers.
Dense urban areas pack buildings close together
In crowded parts of Indian cities, a generous radius on a small plot can accidentally overlap a neighboring building, causing early or false alerts.
Campuses and large complexes need bigger zones
A college, office park, or hospital compound is often much larger than a single home — the zone needs to cover the whole property, not just one entrance.
Starting Points by Location Type
Home (standalone house or small apartment)
100-150 meters is usually enough — covers the building and immediate surroundings without reaching the neighbor's gate.
Apartment complex or gated community
150-200 meters, centered on the complex, so the alert fires at the main gate rather than only right outside your specific block.
School, college, or office campus
250-400 meters or more for a large campus — center the zone on the middle of the property, not the main gate, so it covers the whole area.
Mall, hospital, or large commercial building
150-250 meters — big enough to account for underground parking and GPS drift indoors, small enough to still be meaningfully specific.
Tuning It After the First Week
If alerts fire too early (before actually arriving), shrink the radius by 25-50 meters
If alerts sometimes don't fire at all, especially indoors, widen the radius rather than assuming something's broken
If a zone overlaps a busy road or a neighboring building people frequently pass, narrow it or reposition the center point
Recheck zones after any major change nearby — a new building, a changed entrance, or a house move