CXB2054, "CDXFM, 1235S"
Originally supplied with models: CDFM1235S, CDFXM235S, CDXFM1235, CDXFM12355, CDXFM12358, CDXFM1235S, CDXFM1235S/UC, CDXFM1235S/X1N/UC, CDXFM1239S, CDXFM123S, CDXFM135S, CDXM12355, PIOCDXFM1235S
Battery Required : CR2025 Battery
Dimensions: 2.00 x 4.00 x 0.50 (W x L x D, inches)