Labels Milestones
BackA diameter between 16-19 mm: https://www.keyelco.com/product.cfm/product_id/826 Keystone #500, CR1220 battery holder, Keystone P/N 2462, https://www.keyelco.com/product-pdf.cfm?p=1027 1xAAA Battery Holder, Keystone, Plastic Case, http://www.keyelco.com/product-pdf.cfm?p=1031 AAA battery holder Keystone type 1058 coin cell vertical Panasonic CR-3032/VCN battery, https://industrial.panasonic.com/cdbs/www-data/pdf2/AAA4000/AAA4000D508.PDF battery CR-3032 coin cell retainer CR2032 BR2032 BatteryHolder Battery AA battery cell holder CR2032 retainer clip, SMT ( http://www.farnell.com/datasheets/1505853.pdf BC-2001 CR2032 2032 Battery Holder SMD Tactile Switch, http://www.helloxkb.com/public/images/pdf/TS-1187A-X-X-X.pdf Ultraminiature Surface Mount Tactile Switch with High Contact Reliability, Side-actuated Model, without Ground Terminal, with Boss SPST button switch OFF-(ON CMOS General Purpose Timer, 555 compatible, PDIP-8"/>