One instrument with two uses. It can test the electric field and magnetic field radiation at the same time. It has a sound-light alarm that will alarm automatically when the test result exceeds the safe value. It also has a data locking feature that will allow you to lock the radiation value with one button press.
Unit: electric field: V / m, the magnetic field: μT Accuracy: electric: 1V / m, magnetic 0.01μT Range: electric: 1-1999V / m, magnetic 0.01-19.99μT Alarm Threshold: electric: 40V / m, magnetic 0.4μT Reading display: 3 1/2 LCD display Test Bandwidth: 5Hz - 3500MHz Sampling time: About 0.4 seconds Test mode: Bimodule Synchronous test Over range indication: LCD displays "1" Operating Temperature: 0C-50C Operating Humidity: < 80% Operating voltage: 9V Dimensions: 63.6 * 31 * 125.8mm Weight: 146g Power: 9V 6F22 battery (NOT included)