100% and high quality OOTDTY Features: One detector with two purposes. It can simultaneously test electric field and magnetic field radiation. Sound-light alarm, when the test result exceeds the safe value, the detector will automatically alarm. Data lock, one key lock radiation value. LCD graphics display the trend of radiation values. Radiation assessment, remind you whether the radiation value is safe. Stylish design, easy to operate, convenient to move or make field measurement. Used for test and understand indoor and outdoor electromagnetic radiation situation. Specification: Product name: Electromagnetic Radiation Tester Unit: electric field: V/m, magnetic field: μT Accuracy: electric field: 1V/m, magnetic field: 0.01μT Measurement range: electric field: 1V/m-1999V/m, magnetic field: 0.01μT-99.99μT Alarm threshold: electric field: 40V/m, magnetic field: 0.4μT Reading display: 3-1/2 digit LCD Test bandwidth: 5Hz-3500MHz Sampling time: about 0.4 seconds Test mode: dual mode simultaneous test Overload prompt: Maximum value of measurement range on LCD Operating temperature: 0°C~50°C Operating humidity: relative humidity below 80% Working voltage: 3.7V Power supply: 3.7V lithium battery Material: ABS Size: app.60x25x133mm/2.36x0.98x5.24in Color: Black + Red Quantity: 1set Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Electromagnetic Radiation Tester 1 x Manual(other accessories demo in the picture is not included.)