About this replacement
Designed for CDX, Micro Medical devices. Compatible models include Spiro 850, MicroLab 2002 Spirometer, Microlab 3500 pulmonary function testertype MK4, Microlab MK4 3000 Spirometer, MC3500. Replacement part numbers include MLA5009, B11554, 69100700. Key specifications: 7.2V, 1200mAh, Ni-MH.