无线视频对讲机的铃声

Particulars &Specification: wireless video intercom doorphoneFeatures: 1. built-in surveillance function 2. mobile handset with 2.4 TFT-LCD display 3. identify and screen callers 4. remote unlocking for doors & gates 5. range up to 300 meters open field 6. 12selectable ringtones 7. handset to handset paging 8. built-in infra-red camera for low light visibility 9. expand to a 2-way system by adding a call station & handset 10. rechargeable battery via mini USB interface 11. battery standby status 72hours 12. easy installation and programming Door station: Monitor: Image sensor 1/4’’ CMOS Screen 2.4’’ TFT LCD Power DC 5V/1A Effective pixels 320*240 Current 20mA 30mA(standby), 350mA(operation) Power source DC 5V/1A (rechargeable battery operated) Audio input 16digits digital audio signal, DAC interface, 8kbps sampling speed rate. Battery charge time For the first time, it is 7 10 hours, later around 4 hours. Image compression MJEPG compression USB port For battery charge Transmission power 16 20dBm Current 20mA 30Ma/3.7V(standby), 240mA(operation) Ringing tone 12 options selectable Receiving sensitivity -H0dBm Dimensions H*W*D: 125mm*93mm*35mm Dimensions H*W*D: 129mm*65mm*15mm Weight 203g Weight 140g Notes: 1).handset monitors should be situated away from heat sources and water. 2).products should be opened only by the professional personnel; If there is a malfunction please contact us or our agents. 3).handset monitors should be located where there is a good ventilation, dry, dustless and not in direct sunlight. Don’t use the chemical impregnated or wet cloth to clean the products. 4).please install the products according to this instruction manual to avoid of damaging to the products. Guaranteed: CCC, CE approved. (One year warranty.)