Large WiFi Router Cover — Product verdict
Router Guard · tested 2026-08-25
PartialClaim on the box: “Blocks 90% of router EMF and 5G; Wi-Fi still usable.”
| Measured at | 3ft |
| Position | 3 ft |
| Meters used | TriField TF2, GQ EMF-390 |
| TriField TF2 | 3.64 → 2.47 (32.1%) |
| GQ EMF-390 | 6.48 → 4.25 (34.4%) |
Router on, same 3 ft mark. TF2, ERICKHILL
Measured change is the average of each meter’s own percent change — never a blend of raw readings from meters on different scales. Only a meter whose Before reading clears its resolution floor counts toward it; any that don’t are listed below but marked “not counted”. When a single meter is used, its Before → After appears above; every meter’s own pair is listed below. Thresholds and the full paired protocol are on How We Test.
Browse published product tests, or read how we run the paired test.
More Router Guards verdictsAll Test ResultsHow We TestResults are informational and specific to the documented test setup. EMF levels vary with distance, signal strength, operating mode, and environment. Educational content, not medical advice.