Meterk EMF Meter Electromagnetic Field Radiation Detector Handheld Mini Digital LCD EMF Detector Dosimeter Tester Counter. 
EMF Meter Function - Testing the magnetic field for home use mainly
🎁Measure Radiation - of TV, induction cooker, rice cooker, refrigerator, computer, for low-frequency home appliances, electrical wires, etc
🎁Sound-light Alarm * When the test result exceeds the safe value, the instrument will alarm automatically
🎁Data Hold & Max Measurement - One-key lock the radiation value
🎁Large & Clear LCD Display - of the values for easy reading.