1 x EMF Radiation Tester. 📡 3-in-1 Electromagnetic Radiation Tester | Electric & Magnetic Field + Temperature 📡. ✅Audible & Visual Alarms – Alerts you when radiation levels exceed safe limits 🔔. Electric Field: 1–1999 V/m (Alarm at 40 V/m, ±1 V/m accuracy).
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