Wireless 433MHz Door Magnetic Alarm with One/Two-Way Communication, 3V Low Power, and Battery Reminder.

This innovative door alarm system offers wireless communication at 433MHz, providing reliable security for your home or office. Featuring versatile one or two-way communication options, it ensures you are always informed of any door activity. Designed for energy efficiency, it operates on a low 3V power supply, extending battery life and reducing the need for frequent replacements. The device also includes a helpful battery reminder, ensuring uninterrupted functionality by alerting you when it's time to replace the battery. Easy to install and use, this alarm enhances safety without the hassle of complex setups. Operating Voltage: 3V Alarm Current: 10 mA Detection Angle: Front Quiescent Current: 8 uA Operating Temperature: -20-60 ℃ Transmitting Frequency: 433 MHz Installation: Paste Transmitting Distance: 100-150 m Action Distance: 2.5 mm Communication Method: Wireless Weight: 30 g Alarm Method: Wireless transmission signal Manufacture country: China Instructions included: No