??ONE EMF METER WITH TWO USES - Testing the electric field and the magnetic field strength at the same time. ??MEASURE RADIATION: TV, induction cooker, rice cooker, refrigerator, computer, appliances, electrical wires, etc. ??SOUND-LINGHT 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: Easy to read the values