1. Compact Size: This electromagnetic field detector is designed in a small size, perfect for everyday use. Its compact form allows for and handling, ensuring convenience during measurements. 2. 8+1 LED Lights: Equipped with 8+1 LED lights, this EMF gauss meter enables you to read test results and power status in both dark and sunny environments. The LED lights provide clear indications of electromagnetic field levels. 3. Special Functionality: The 8 LED indicator lights of radiation dosimeter different radiation values. Green light indicates the "Normal" and "Low" zones, yellow light represents the "Caution" zone, orange light indicates the "High" zone, and red light signifies the "Warning" zone. 4. Wide Range of Applications: This portable EMF magnetic field monitor can be used in settings, including your home and appliances such as computers, televisions, hairdryers, cleaning devices, and other equipment. It is frequently used during activities and can also assist in identifying potentially harmful high electromagnetic field radiation. The tool helps you gain comprehensive knowledge about your environment. 5. Versatile Application: In addition to its usefulness in household applications, this handheld magnetic-field monitor is also appropriate for professional use. It can be employed by electricians, engineers, and anyone working with electronic devices to identify and mitigate potential electromagnetic field hazards. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Type:Without Battery Power Supply:1 x 9v battery(Not included batteries) Colour:Black Material:Plastic Package Contents: 1 * Electromagnetic Radiation Detector Only the above package content, other products are not included. 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.