Visual doorbell features

Visual doorbell features

1. Adopt 2.4G ISM digital public frequency band.

2. The transmission power is 20dBm and the receiving sensitivity is -105dBm.

3. The air transmission rate is up to 2Mbit/s, which greatly shortens the space transmission time.

4, using ARM9 core, super computing power.

5, simplex, half-duplex, duplex multiple modes.

6, with 8-bit digital audio signal serial input, 16-bit voice sampling accuracy, DAC audio output port.

7, using high-definition camera, 30W pixels, 320 * 240 resolution, 2.4-inch LCD display, as clearly visible day and night.

8. The image adopts MJPEG compression mode, and the one-way wireless can reach 15~18 frames/second.

9. The communication distance is 300 meters.

10. Using AFH adaptive frequency hopping technology, randomly generate 40-bit password, which is resistant to interference and security.

11, automatic power-saving sleep protection, external wake-up work.

12, indoor unit uses 3.7v lithium battery, the current is 190mA when fully working, 20~30mA in standby.

13. The outdoor unit adopts four 1.5V dry batteries, which are easy to install and can be used for half a year.

14. Pass FCC certification and ROHS certification

15, other optional features: automatic image storage, image camera function, can be implemented two drag three.