Extech 480823 Single axis EMF/ELF Meter measures electromagnetic field radiation levels from fans, electrical appliances, wiring, and power lines; ELF frequency bandwidth of 30 to 300Hz; Single axis - sampling 2.5 times per second,
The Extech Model 480826 is a battery powered meter that measures and displays EMF in Gauss and Tesla units with a frequency bandwidth of 30 to 300Hz. The 3 axis sensor allows for three component (xyz) measurement coverage. ....
The extech 480836 RF EMF Strength Meter High Frequency measurement for Elector Magnetic Field Meter (50MHz to 3.5GHz). Ideal for mobile phones, cell phones, base stations, and microwave leakage, Non-directional (isotropic) measurement with three-channel (triaxial) measurement probe Manual store/recall up to 99 sets User selectable alarm threshold ....
Extech 480846 8GHz RF EMF Meter monitors high frequency radiation in the 10MHz to 8GHz frequency range for electromagnetic field strength measurement including mobile phone base station antenna radiation wireless communication applications (CW, TDMA, GSM, DECT) and microwave leakage.....