BSIDE K7 Handheld Electromagnetic Radiation Detector Electromagnetic Wave Tester 1. Digital electromotive force meter built-in 3 electromagnetic radiation sensors 2. Measure the radiation of electromagnetic stove, microwave oven, refrigerator, to protect the safety of the home 3. Buzzer alarm design, when the test results exceed the safety value, the instrument will automatically alarm 4. With flashlight, can also work at night 5. Internal special ABS material, drop-proof and durable Parameters: 1. Resolution: magnetic field: 0.1mg0.01μT; electrical field: 1VM 2. Range: magnetic field: 0.1-199.9mg0.01-19.99μT; electrical field: 1-1999VM 3. Alarm threshold: magnetic field: greater than 4mg0.4μT; electrical field: greater than 40VM 4. Frequency response range: magnetic field: 5hz-300hz; electrical field 4hz-3500mhz 5. Accuracy: about 15 percent 6. Temperature range: -20-60 degrees celsius 7. Sampling time: about 0.4 seconds 8. Low voltage indication: less than 6.8V 9. Operating temperature: 0-40 degrees celsius 32-104 degrees fahrenheit 10. Operating humidity: 45-80 percent RH 11. Power supply: 3 x 1.5V AAA batteries (not included in shipment) 12. Size: 220mm x 60mm x 55mm 13. Weight: about 170g (without battery)