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==454 Modifications== | ==454 Modifications== | ||
The 454 came in several different | The 454 came in several different modifications that were indicated on the field on the front plate directly below the "454" lettering, left of the serial number field. Known modifications are | ||
* MOD163D | * MOD163D | ||
* MOD210N - [[P6047]] accessory probes come in 6 ft variant with extra accessories. | * MOD210N - [[P6047]] accessory probes come in 6 ft variant with extra accessories. |