The National Data Buoy Center intends to negotiate only with PNI Corporationl of Santa Rosa, California for 25 Each, Model TCM2.5 compasses module. The NDBC uses these compasses on the hurricane buoys and are used with the anemometers to determine wind direction.    These units were found to be the only compassses compatible with the buoy fleet are necessary due to their low power consumption to about 4-6ma or less than 1/10 previously required.  This is especially important on buoys deployed in areas of low average sunlight. See numbered Notes 1 and 22.