Portable Vibration Calibrators › Proximity Target | Steel target for proximity probes Image 1 of 1 Proximity Target | Steel target for proximity probes £0.00 Type: Spare / ReplacementMaterial 4140 Steel.Thread: 1/4-28(Included in Proximity Probe Kit) Quantity: Add To Cart Added! Type: Spare / ReplacementMaterial 4140 Steel.Thread: 1/4-28(Included in Proximity Probe Kit)