Door alarm for securing house/apartment doors, cupboards, display cases, etc. Warning and deterrence when the secured door is opened through a loud alarm tone (95 dB(A)). Arming/disarming with a key (2 included). Adjustable for immediate or delayed alarm (entry delay approx. 15 seconds). Easy to attach using the screws or adhesive strips provided. Power supply: 2x 1.5V AAA batteries (not included). Dimensions: 54 x 104 x 26mm (alarm device), 12 x 40 x 13mm (magnet).