Features: 3 in 1 EMF meter: One machine for three purposes, simultaneously detecting electric field, magnetic field radiation and also temperature combine. Alarm: Exceeding alarm threshold (electric field: 40V/m; Magnetic field: 0.4T), the instrument will sound, light, screen display at the same time. Clear display: LCD graphics display of radiation value trend. Radiation assessment, to remind you whether the current radiation value is safe. Easy to use: Fashion appearance, easy to operate with one hand, and also easy to move or field measurement; All designed for your convenience. Widely used: Home, office, industrial; Mobile phone, computer, TV, refrigerator high voltage line radiation detection; Test the effect of protective equipment such as radiation protective clothing and radiation protective film. Specifications: Material: Plastic Color: As The Picture Shows Package Weight: approx.128g Size: approx.152x52mm/5.98x2.04in (More Size Detail, Please See Photo.) Note: Please allow 1-3mm error due to manual measurement. Please 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. Thanks! Package includes: 1Pc Nuclear Radiation Detector