Electromagnetic Radiation Tester Power supply: 9V battery (not included) Measurement range: 0-20 mG; Accuracy: 5% Measurement frequency: 50/60 Hz Key benefits - Simple handheld device to measure ambient magnetic field strength from electrical equipment - Provides quick readings to verify EMF levels in the 0-20 mG range - Portable and easy to use at home, in the office, or on the job site - Battery powered for flexible use without a mains connection What makes it stand out - Clear milligauss level readings with stated accuracy - Operates at standard power line frequencies 50 and 60 Hz Use scenarios - Home: check EMF around kitchen outlets, computers, and power strips - Office or workshop: inspect around electrical panels and machinery - Renovation or shielding projects: verify effectiveness of shielding and cable management