About this item

• Security alarm, the infrared sensor detects motion and sends a signal to the receiver; The receiver bell will ring and flash when activated; Using a high-quality sensor you can know that the visitor enters your store without looking at the door
• Wireless Doorbell: Range up to 200 meters (distance between sensor and receiver), and the sensing range of the sensor (the PIR detection distance) is about 3-5 meters.
• 4 Switches on Receiver: The sound switch is for choosing sound or mute modes. The music switch has 36 tones to choose from. Volume is for volume adjustment: high, medium and low.
• Power supply, Sensor: Batteries: 3 x AAA (not included); Receiver: DC 110-240V
• Widely Used: Applicable to all kinds of shops, hotels, offices, factories, houses, etc.