GAUSS METER 3 Axis RF Electromagnetic Field Meter     100 MHz to 3 GHz, general purpose, one probe     Model : EMF-819     * 3 Axis RF EMF tester, general purpose application.     * Frequency range up to 3 GHz, for monitoring the wide range radio frequency EMF value or detect the micro wave leakage.     * Measuring range : 0 to 199.99 V/m,     0 to 99.999 W/m2     0 to 9.9999 mW/cm2     * Data hold, Peak hold. Record (Max., Min. value).     * Frequency Probe, EP-05H is included.     * Hard carrying case is included.     * RS232/USB computer interface.     * Large size LCD, Microcomputer circuit.     * Powered by DC 9V battery or DC 9V adapter.