| HOME --> Product -->Digital Wireless System-->Door Intercom--> |
| | VS-B27 | VS-B57 | |
• Revolutionary interference free wireless experience
• 2-way audio conference function for secured conversation
• Convenient one-touch remote door unlock function
• Auto visitor recording function to SD memory card (Up to 32GB)
• IP-55 weather-proof metal outdoor unit with rain-shield for outdoor installation
• Outdoor unit with 6 AA batteries for backup power up to 6 month
• Portable Wireless Receiver with bright digital 7” LCD monitor and internal Li-ion battery for up to 4 hours
| RF Frequency | 2.4G | |
| Modulation | GFSK | |
| Transmission Power | 13dBm | |
| Sensitivity | -75dBm | |
| Transmitting Range | 200 meter /600 Feet in open space | |
| Outdoor Unit | Answering Unit | |
| Operating voltage | 15V 1.5A | 5V 1A |
| Current Consumption | 180mA(max) | 650mA(max) |
| Picture Sensor | 1.4" CMOS | N/A |
| Lens View Angle | 1.8mm H:85° V:65° | N/A |
| Selectable Camera Channel | 1CH | 1CH |
| Battery | 6 AA dry cell | 3.7V/1800mA Li-on battery |
| Output Image Resolution | 640 x 480(VGA) | |
| Video Output Level | N/A | 1Vp-p 75ohm |
| Audio Output Level | N/A | 1Vp-p 600ohm |
| IR LED Quantity | 9 IR LED / 1 EDS | N/A |
| Output Jack | N/ A | 3.5mm phone jack (AV Out) |
| Night Vision | 0.8 meters | N/A |
| IP Weatherproof Standards | IP55 | N/A |
| Battery Operation Time | 6 hours (max) | 4 hours (max) |
| Approx. Dimension | 169 x 85 x 36 mm | 133 x 87 x 27 mm |
| Approx. Weight | 205g (w/o battery) | 200g (w/battery) |
| Operating Temperature | -10℃ ~ + 40℃ | -10℃ ~ + 40℃ |
