Welcome to our shop! This Electromagnetic Radiation Detector is designed with an excellent design for measuring electromagnetic field radiation levels around power lines, home appliances, and industrial devices. It is widely used in electrical equipment, electromagnetic radiation measurement, phones, computers, TV sets, copy machines, fax machines, AC, refrigerators, and more. It is suitable for most measuring effects of radiation products, presentations, and personal understanding of radiation. The detector is designed to meet CE standards and features simple operation, high sensitivity, and a frequency range of 50Hz-2000MHz. It is accurate and safe to use, portable, and stable. Specifications: - Material: Plastic - Color: Black - Screen: LCD - Frequency Range: 50Hz-2000MHz - Reacting Time: 0.4S - Voltage: 9V - Battery Model: 6F22 9V (Battery is NOT included) - Size: 132MMx69MMx29MM/5.20 x 2.72 x1.14Inch - Weight: 157G Package includes: - 1 x Electromagnetic Radiation Detector How to detect: 1. Switch on the device. 2. Slowly bring the device close to the object until it makes contact. Remember not to get too close to objects with high voltage. 3. Change the angle during detecting until you get the maximum data. 4. When the object is powered off, the reading will be restored to 0 unless there are other electromagnetic radiation disturbances. About battery: - When the reading of the device is too low or there is no alarm, it means the battery power is low. Please change the battery. - Please remove the battery when finished using it. 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.