[Multifunctional] Can detect the strength of magnetic field and electric field at the same time, and it can also measure the temperature of the current environment. [Sound Light Alarm] Electromagnetic field detector is sensitive and accurate in measurement results, the alarm value can be set, and there are sound light alarm. [Energy Saving] Electromagnetic field radiation detector can directly charge lithium batteries via USB, which is energy saving and environmentally friendly. [High Accuracy] This digital electromagnetic field tester no need to adjust, with high accuracy chip, one key to clear electromagnetic field data. [Widely Application] Widely used in digital equipment testing, maternal and child products testing, household equipment testing, etc. How to Use: 1. Turn on off: short press the on off button to turn on the detector, the full screen display will display the current measured values of electric and magnetic fields for about 1 second, and long press the on off button to turn off the detector after startup. After no button operation for 5 minutes, the detector will automatically shut down Specification: Item Type: Electromagnetic Field Detector Model: XRCLIF-3121 Material: ABS Battery: 3.7V lithium battery 600m - Ah (Battery Included) Application: Digital equipment testing, power strip equipment testing, maternal and child products testing, high voltage equipment testing, server testing, household equipment testing Electric Field: Unit: V/m Accuracy: 1V/m Range: 1V/m-1999V/m Alarm Threshold: 40V/m Magnetic Field: Unit: μ - T Accuracy: 0.01μ - T Range: 0.01μT-99.99μT Alarm Threshold: 0.4μ - T Reading Display: 3-1/2 digital LCD Measurement Bandwidth: 5Hz-3500MHz Sampling Time: About 0.4 seconds Measurement Mode: Dual mode at the same time Overload Indication: The maximum value of the measurement range on the LCD Working Temperature: 0°C~50°C Working Humidity: Relative humidity is lower than 80% Package List: 1 x Electromagnetic Field Detector (Battery Included) 1 x USB Data Cable 1 x Manual