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SHE Coverage Efficiency Score

NM
Nicholas Miles · Editor-in-Chief & Methodology Owner·Last updated 2026-04-16

The SHE Coverage Efficiency Score is a 0-10 composite score. (Rooms Covered × 0.25) + (Sensor Types × 0.25) + (Interconnect Capability × 0.25) + (Total Cost for Whole Home × 0.15) + (Annual Maintenance Cost × 0.10) Published by SmartHomeExplorer and last updated 2026-04-16, the score currently evaluates 5 products.

Guide-Specific Metric

Formula

(Rooms Covered × 0.25) + (Sensor Types × 0.25) + (Interconnect Capability × 0.25) + (Total Cost for Whole Home × 0.15) + (Annual Maintenance Cost × 0.10)

Scale

Scored on a 0-10 scale.

Scored Products (5)

ProductScoreGuide
Google Nest Protect8.85View guide →
First Alert Onelink7.75View guide →
Kidde Smart Detect6.75View guide →
X-Sense SC017.75View guide →
Ecolink FireFighter6.25View guide →

Defined In

This metric was first published in smart carbon monoxide smoke detector combos room guide.