Replacement battery for Alaris Micro 1 Spirometer. Specifications: 2000mAh, 2.4V, Ni-MH. Compatible with: Alaris Micro 1 Spirometer, Micro1 Spirometer, Biomedical Micro1 Spirometer. Replaces: Alaris 36-BAT1043, Alaris OM11861, CareFusion 36-BAT1043, CareFusion OM11861, Biomedical 36-BAT1043, Biomedical OM11861. Carefusion replacement battery designed for Medical devices.