3 Axis Low Cost EMF Meter

The Lutron EMF-839 is a budget-friendly 3-axes EMF meter with a frequency range of 100 KHz to 3 GHz. It is supplied  two probes: one for frequencies between 100 KHz and 100 MHz, and a high-frequency probe suitable for 100 MHz to 3 GHz. 

Specifications

Measurement units : V/m, W/m^2, mW/cm^2
Alarm for warning the user if the measuring antenna is too close to strong radiation sources.
RS232 computer interface.
Sampling time adjustment range from one second to 8 hours 59 minutes 59 seconds.
Powered by 006P DC 9V battery or DC 9V adapter.