Advanced EMF Meter GQ EMF-390 3-in-1 EMF ELF RF Meter, Low-Band 5G Cell Tower Smart Meter WiFi Signal Detector RF up to 10GHz with Data Logger and 2.5Ghz Spectrum Analyzer

Features

• Read EMF, RF and EF at same screen at once
• Detects all three invisible radiation source and gives warring
• Auto identify the possible radiation source
• Rechargeable battery can be charged on a any USB port or cell phone charger
• Every second data logging and save up to 24 hours history data