Fangrui Product Details 1. Mestek Emf01 Electromagnetic Radiation Detector Highly Sensitive 3-axis Sensing Probe 2. Three-way Signal Detection: High-sensitivity Three-way Induction Probe (x, Y, Z Axial Electric Field And Magnetic Field Measurement) 3. Make Radiation Nowhere To Hide: In Daily Life, Radiation Comes From Computers, Tvs, Microwave Ovens, Electric Fans, Mobile Phones, Etc. When The Analog Digital Electromagnetic Radiation Displayed On The Screen Reaches The Yellow Area, The Instrument Alarms, And The Screen Displays Alarm And Harmful Prompts At The Same Time, Indicating That The Radiation Exceeds The Standard, And Protective Measures Should Be Taken Or Stay Away From The Radiation Source. 4. High-definition Color Screen Display, Easy To Use And Simple To Operate 5. Power Supply: 3 Aaa Batteries (not Included), Easy To And Power-saving 6. The Outer Shell Is Made Of Rubber Material, Comfortable To Touch, Resistant To Drop And Wear, And Strong In Impact Resistance 7. Widely Used In Homes, Offices, Living Areas, Industrial Equipment, Distribution Rooms, High-speed Railways, Signal Base Stations, Etc. 8. Specifications: 9. Working Altitude: 2000m 10. Measurement Method: Electromagnetic Induction 11. Display Mode: Va Reverse Color Screen 12. Maximum Display: 9999 13. Sampling Rate: About 0.4 Seconds 14. Measurement Range: Vm: 0~9999, Ut: 0~74, Mg: 0~740 15. Resolution: Vm: 1, Ut: 0.01, Mg: 0.1 16. Bandwidth: 5-3500mhz 17. Automatic Shutdown: About 10 Minutes 18. Working Current: About 20ma 19. Power Supply: 1.5v X 3 Aaa (not Included) 20. Measurement Temperature Range: -10~60 Degrees Celsius 21. Working Temperature And Humidity: 0~60 Degrees Celsius0~rh 22. Storage Temperature And Humidity: -10~60 Degrees Celsius0~rh 23. Dimensions: 170 X 73 X 33mm 24. Weight: About 160g (without Battery) 25. Package Includes: 26. 1 X Tester 27. 1 X Screwdriver 28. 1 X Storage Bag 29. 1 X English Manual