Equipment Kit: You will receive 1 electromagnetic field meter and 2 motion activated balls; such a great combination can easily meet your needs, adding more suspense and fun<br> Accurate measurement: Built-in electromagnetic radiation detector, processed by the control , can display the radiation value on the clear LCD digital display; Measure magnetic field radiation (in MG/T) and electric field (in volts/meter); Note: This EMF meter cannot test RF values<br> Multifunctional: The electromotive force detector has multiple functions, including data retention, maximum measurement, simple touch lock data, manual or automatic shutdown, safety value setting, sound and light alarm, etc.<br> Sound and light alarm: When the electromotive force reader test result exceeds the set value (0.4T or 40V), the indicator light flashes, the screen turns red, and the buzzer alarms; if you are testing in some quiet areas, you can turn off the buzzer first device so as not to disturb other areas<br> Wide range of applications: This ghost detector device is small and portable, and can be operated with one hand. It is suitable for radiation testing of , , computers, induction cookers, microwave ovens, rice cookers, refrigerators, mobile phone towers, printers, etc., helping to reduce possible damage. Radiation risks to your family's health, perfect for , parapsychology research and hotel inspections<br> Power Supply:AAA 1.5V x 3pcs(Not included batteries)<br> Colour:Black<br> Material:Plastic<br> Package Contents:<br> 1 x Emf meter<br> 2 x Light up ball<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.