MastfuyiFY876 Digital EMF Meter a. Practical design. Slim appearance, easy to carry, with striped non-slip soft rubber at the handshake, it is convenient and comfortable to use. b. The combination of electromagnetic field measurement and electric field measurement . There is not only electromagnetic field radiation in life, but also electric field radiation that is easily overlooked. Both will cause great harm to the human body. Using this product can help you discover different radiation sources in time and protect your health. c. Wide electromagnetic field measurement range. The frequency range supported by this product is 5Hz-3500MHz . It can measure not only household appliances such as TV sets, refrigerators, fans, but also the radiation caused by high-frequency signals such as mobile phones and computers. Most of the products on the market can only measure 5Hz-300Hz, which is the frequency range of household appliances, such as TVs and refrigerators. The frequency of high-frequency signals such as mobile phones is usually between 800 and 1800MHz, which is often undetectable. d. Various prompts for the intensity of the radiation. There is an LED light on the front of the sensor of the product. With the increase of the radiation intensity, it will change from green light to yellow light, red light, and the sound of the warning will also become more and more rapid, so that we can get the radiation intensity information without looking at the screen. And if you sometimes feel that the sound alarm is a little annoying, you can turn it off. e. Peak measurement . Radiation is usually unstable and constantly changing, sometimes large and sometimes small, it is difficult to determine the strength of the radiation. This product has a peak measurement function. If you want to know the time of maximum radiation in a period of time or the place of maximum radiation in the room, you can choose to enter the MAX mode, the product will capture the peak for your reference. (Tip: The back of the product is equipped with a tripod hole, which can be used on a tripod.) f. Data freeze . In the proce of using the product, sometimes it may be neceary to record the measured value, but the radiation will change with the change of the measurement position, even a slight movement. With this function, we only need to pre the HOLDkey, the measured value will be frozen on the screen no matter how the position changes, it is convenient to record data. g. Ambient temperature measurement function. On this product, we have also added the ambient temperature measurement function. One product integrates two uses. When you just need to know the temperature of the air, you don't need to find another temperature measuring instrument. It is enough to use this product. And the temperature unit can also be switched.(/) h. High-definition backlit display . You can turn on the backlight when the light is low, and turn off the backlight when the light is bright to save power. i. Automatic shutdown on and off . When the product is used, we often forget to turn it off, resulting in exhaustion of power. On this product, we have designed a 10-minute no-operation automatic shutdown function to reduce unneceary waste of power. And if you need to use it for a long time, you can turn off this function. j. Flashlight . There is an LED light on the back of the product. Can be used for lighting in emergencies or when light is needed. EMF measurement Range: 0.1-199.9mG / 0.01-19.99T Resolution: 0.1mG / 0.01T Alarm threshold: More than 4.0mG / 0.4T Electric field measurement Range: 1-1999V/M Resolution: 1V/M Alarm threshold:More than 40V/M Ambient Temperature Measurement Range: 0-50 / 32-122 Resolution: 1 / Accuracy:1.5 / 3 Frequency range 5Hz-3500MHz Automatic Shut-down 10 minutes of inactivity Low Battery Icon Le than 6.8V EMF unit switch mG / T Temperature unit switch / Power "9V" battery (Not included) OperatingConditions 0-40 / 32-104 45%-80%RH 1 * EMFmeter 1 * User's Manual 1 * Cloth bag 1 *Kraft box a. Check the instrument carefully before use. If you find any damage or other problems,please do not use and contact us. b. Do not disaemble the meter and change the internal wireto avoid damage to the meter. c. Do not store or use in high temperature, high humidity, flammable and explosive environment. a. Mastfuyiproducts provide a TWO-YEARWARRANTY . During this period, if there are some problems with the product, please contact us in time, we will replace it for you free of charge. b. Mastfuyiproductsprovide LIFE-LONG CONSULTATION SERVICES . No matter how long after purchasing our products, if you have any questions about the products or some problems in the use proce, please contact us with no hesitation. We will provide you with the most profeional technical answers, let you use the product worry-free. c. Mastfuyi products promise to SHIP WITHIN THREE DAYS according to the ship