Alarm Türklingel K-313 (CE-Zertifizierung)

Intelligent alarm doorbell 1. Working voltage: 3V for receiver, 4.5V for transmitter; 2. Working frequency: 315MHZ or433.92 MHZ; 3. Induction distance: 3-7 meters; 4. Induction angle: 100 degree fan shape angle; 5. Remote control distance between receiver and transmitter: ≥200 meters in the open air; 6. Packing: separate: blister card, 20 pcs in one box, two boxes in one carton; 7. QTY/CTN: 40 pcs; 8. Carton size: 50 x 50 x 44 cm. Package: