B-300MR Contour Probe
Parker B-300MR Contour Probe

The B300MR Contour Probe is a rugged high performance instrument designed for Magnetic Particle inspection to accepted Nondestructive testing standards. Parker Contour Probes are designed with flexible legs that allow the field to be “focused” at a precise area of inspection. Components are protected by a reinforced glass-filled nylon housing. The external push button switch magnetically activates the power circuit from the outside. There is no electrical contact between the switch and internal circuit. This instrument is ideally suited for high moisture areas. Model B300MR and B300MRS produce a strong constant AC field. Plastic carry cases (PL-Case & C-Case) and Test Kits (PL-A Kit & A Kit) are available. Standard test kits include 1 lb. each of Red & Gray powder, PB1 powder blower, and carrying case.
Description
The B-300MR Contour Probe is a lightweight (7½ pounds) Magnetic Inspection Yoke designed to perform magnetic particle inspections quickly and reliably.
As with the other Parker probes, the B-300MR has fully adjustable legs which allow the strong AC field to be applied directly to the precise area to be inspected, regardless of part size or mass.
The B300-MR contains electronic circuitry that is sealed within the instruments housing. The external push button switch magnetically activates the power circuit from the outside. There is no electrical contact between the switch and internal circuit. This instrument is ideally suited for high moisture areas. Rated IP65
MODEL | POWER REQUIREMENTS | FIELD | WEIGHT |
B300-MR | 115 VAC 60 Hz 6 AMPS | AC | 7.25 lbs. (3.29 kg) |
B300-MRS | 230 VAC 50 – 60 Hz 3 AMPS | AC | 7.25 lbs. (3.29 kg) |
Parker B-300MR Contour Probe

The B300MR Contour Probe is a rugged high performance instrument designed for Magnetic Particle inspection to accepted Nondestructive testing standards. Parker Contour Probes are designed with flexible legs that allow the field to be “focused” at a precise area of inspection. Components are protected by a reinforced glass-filled nylon housing. The external push button switch magnetically activates the power circuit from the outside. There is no electrical contact between the switch and internal circuit. This instrument is ideally suited for high moisture areas. Model B300MR and B300MRS produce a strong constant AC field. Plastic carry cases (PL-Case & C-Case) and Test Kits (PL-A Kit & A Kit) are available. Standard test kits include 1 lb. each of Red & Gray powder, PB1 powder blower, and carrying case.
Description
The B-300MR Contour Probe is a lightweight (7½ pounds) Magnetic Inspection Yoke designed to perform magnetic particle inspections quickly and reliably.
As with the other Parker probes, the B-300MR has fully adjustable legs which allow the strong AC field to be applied directly to the precise area to be inspected, regardless of part size or mass.
The B300-MR contains electronic circuitry that is sealed within the instruments housing. The external push button switch magnetically activates the power circuit from the outside. There is no electrical contact between the switch and internal circuit. This instrument is ideally suited for high moisture areas. Rated IP65
MODEL | POWER REQUIREMENTS | FIELD | WEIGHT |
B300-MR | 115 VAC 60 Hz 6 AMPS | AC | 7.25 lbs. (3.29 kg) |
B300-MRS | 230 VAC 50 – 60 Hz 3 AMPS | AC | 7.25 lbs. (3.29 kg) |