Piezo speaker | Sound pressure: 82 dB | Diameter: 22 mm | Sound frequency: 3.7 kHz
12/24V DC | Holding force: 750 kgf | Surface-mounted | Lock status monitoring | For large doors and gates
Motorized | 12-28V DC | 400mA / 50mA | Fail-secure | Key operable | Auto-close timing | Door and lock status feedback