Select your COMPUDYNE model from the choices below...                                             
3SL 486DX33 (NICD) 486DX33 (NIMH) BC380 MODEL 3SL/25, 3SXL/25, 4DX/33, 4
MODEL 4DX2/66, 4DX2/66M, 6SXL MODEL BC380, BC380A, BC380B, NB3