Description One of the key features of this magnetic field detector is its ability to detect invisible magnetic fields, making it suitable for use in areas with limited visibility. It is commonly used for testing TVs, computers, microwave ovens, and other low-frequency household appliances. Features - Color: Black - Material: ABS - Size: 15.00 x 5.50 x 3.00 cm / 5.89 x 2.16 x 1.18 in - Power supply: 1 x 9V battery (not included) - Equipped with 5 LEDs indicating field strength levels: Dark Green - "Normal" area - background magnetic field (0 to 1.5 mG) Green - "Low" zone - low-level magnetic field (1.5 to 2.5 mG) Yellow - "Warning" area - medium magnetic field (2.5 to 10 mG) Orange - "High" zone - high magnetic field (10 to 20 mG) Red - "Warning" zone - extremely high magnetic field (20+ mG) - This EMF tester helps measure electromagnetic fields to identify potential sources of radiation. - The magnetic field detector is an electronic device designed to measure electromagnetic field strength. - The EMF meter allows users to assess exposure levels, offering a practical solution for home environments. - This portable magnetic field detector identifies invisible and intangible magnetic fields, serving as a useful tool across various applications. - Can be used to test common household devices such as TVs, microwave ovens, refrigerators, computers, and more. Package List 1 x Meter