[3-in-1 EMF Meter] This 3-in-1 multifunction EMF meter is specially designed to detect the strength of radio frequency (RF), electric field (EF), and magnetic field (MF). Featuring a built-in high-precision electromagnetic radiation sensor and micro-control chip processor, it quickly and accurately measures electromagnetic radiation levels. Whether at home or in the office, this EMF detector is an ideal tool for comprehensive EMF detection. [Multifunctional Applications] The RF mode detects WiFi signals, 5G signals (50MHz3.5GHz), and microwave radiation from appliances such as microwave ovens. The ELEC and MAG modes measure electromagnetic radiation emitted by common household devices including induction stoves, refrigerators, printers, computers, and power cords. This EMF meter helps optimize appliance placement to minimize exposure to high radiation environments. [Audible & Visual Alarm] The EMF meter radiation detector includes a three-color backlit display (green, orange, red) and an audible alarm that can be turned off. The large LCD screen provides a clear digital readout with trend indicators, offering a clear view of current field strength data. The intensity and frequency of the audible alarm increase with higher measured values. [Convenient and Practical Functions] This electromagnetic field radiation detector features maximum value measurement and data hold functions for easy viewing and analysis. The LCD screen displays data clearly, enhancing user experience. It also includes an auto-shutdown function after 15 minutes of inactivity to conserve battery life. Designed with ergonomics in mind, it is comfortable to hold in one hand and easy to carry. Color: As Shown Material: Plastic Package Contents: 1 x EMF Meter Note: Light reflection and differences in display screens may cause slight variations in the item's color as seen in images. Measurement error allowance is +/- 1-3 cm.