The PR-261 is the ideal toolkit for the investigation of RF electromagnetic fields. It is indispensable for EMI pre-compliance testing during product development, prior to third party testing. The set includes 3 hand-held probes with a built-in pre­amplifier covering the frequency range from 1 0 kHz to 1000 MHz depending on probe type. The set includes one magnetic field probe, one electric field probe and one high impedance probe.