Magnetic field probes are mainly used for rectification of EMI space radiation and conduction rectification. The handle part is also shielded, reducing the impact of human hands on the probe. Conducive to improving the accuracy of position detection. Adopt a fully shielded structure, which greatly suppresses electromagnetic clutter interference in the external environment. Frequency Range: 9KHz-7GHz Specification: Material: PCB Size Chart: Type III: Extra Large(WxLxT): 5x10x0.42cm/1.96x3.93x0.16inch Large(WxLxT): 2.1x10x0.42cm/0.82x3.93x0.16inch Medium(WxLxT): 1.4x10x0.42cm/0.55x3.93x0.16inch Small(WxLxT): 1x10x0.42cm/3.93x3.93x0.16inch Electric Field Probe(TxLxL): 2.3x1x10/0.09x0.39x3.93inch Package Includes: As You Choose A: 1 Each for Large, Medium, Small Probe(type III) B: 1 Each for Large, Medium, Small Probe(type III), 1 x Electric Field Probe C: 1 x Extra Large(type II)Probe, 1 Each for Large, Medium, Small Probe(type III), 1 x Electric Field Probe D: 1 x Extra Large(type III)Probe, 1 Each for Large, Medium, Small Probe(type III), 1 x Electric Field Probe E: 1 Each for Large, Medium, Small Probe(type III), 1 x Composite Probe F: 1 Each for Large, Medium, Small Probe(type III), 1 x Composite Probe, 1 x Electric Field Probe G: 1 x Extra Large (type II)Probe, 1 Each for Large, Medium, Small Probe(type III), 1 x Composite Probe, 1 x Electric Field Probe H: 1 x Extra Large (type III)Probe, 1 Each for Large, Medium, Small Probe(type III), 1 x Composite Probe, 1 x Electric Field Probe Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.