Spot bridge/differential probes can be referred to as surface probes but are a lower frequency than their high frequency counterparts can be used to find generic subsurface defects. They are normally fitted with a triax detachable connector but can be fitted with a 2 pin microdot or 4 pin Fischer connector. O.D. 50-500Hz 100Hz-1KHz 500Hz-2KHz 1-10KHz 5-20KHz 20-50KHz
.300" -------- -------- SB.3-500H SB.3-1K SB.3-5K SB.3-20K
.350" -------- SB.35-100H SB.35-500H SB.35-1K SB.35-5K SB.35-20K
.400" SB.4-50H SB.4-100H SB.4-500H SB.4-1K SB.4-5K SB.4-20K
.500" SB.5-50H SB.5-100H SB.5-500H SB.5-1K SB.5-5K SB.5-20K
.600" SB.6-50H SB.6-100H SB.6-500H SB.6-1K SB.6-5K SB.6-20K
.700" SB.7-50H SB.7-100H SB.7-500H SB.7-1K SB.7-5K SB.7-20K
.800" SB.8-50H SB.8-100H SB.8-500H SB.8-1K SB.8-5K --------
.900" SB.9-50H SB.9-100H SB.9-500H SB.9-1K -------- --------
1.00" SB1.0-50H SB1.0-100H SB1.0-500H SB1.0-1K -------- --------
1.20" SB1.2-50H SB1.2-100H SB1.2-500H -------- -------- -------- |
