Feature 1High Sensitivity: Electromagnetic radiation tester's electric field and magnetic field radiation frequency range is 50Hz2000MHz, with high sensitivity. 2Multi Purpose: EMF tester can be used to measure the electromagnetic radiation of household appliances such as computers, mobile phones, TVs, fans, lamps, alarm clocks, refrigerators, etc. 3Small Portable: This electromagnetic radiation detector has a compact structure and a digital LCD screen that can display three and a half digits, which is very convenient for handheld use. 4Accurate Measurement: Handheld radiation tester is suitable for most radiation product measurement effects, demonstrations, etc., accurate and safe to use. 5Hand Held Design: The electromagnetic radiation detector adopts a hand held design, which is easy to use, not easy to fatigue after long term use, and can also test the radiation of alternating current.Item Type: Electromagnetic Radiation TesterMaterial: ABSColour: BlackScope of Application:For TVs, Fans, Lamps, Air Conditioners, Alarm Clocks, Refrigerators and Other Household AppliancesBandwidth: 50Hz-2000MHzSampling Time: About 0.4SBuilt in Battery: Li ion Battery Model: 6F22 (not Included) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 xElectromagneticRadiationTester1 xUser ManualNoteShips without battery.