With 7/8 in. dia, 2-pole Model B12 provides 20 lb of force, and 2-pole Model B13, measuring 1 in. dia, delivers 35 lb of force. Bases have 1/4–28 tapped hole that can accommodate variety of threaded stud adapter sizes such as M6, M8, 3/8, and 10-32 for compatibility with most industrial accelerometers. Applications include walk-around data collection since attaching base allows vibration sensor to be moved from point to point.