Digital Lock YDG313 Material against fire and fire alarm. Reinforced internal insurance. Automatic blocking Battery alarm and emergency power. Resistant to electric shocks. Uses 4 AA batteries. Up to 40 cards (4 included). It does not require perforations. For glass doors SKU Description 0008897 Digital Lock YDG313 Download the Technical Sheet Cerradura YDG313.pdf (..pdf, 147 kB) Related Products: Digital Lock YMF30 Digital Lock YDM3212