| Model composition | 
Main Monitor(VL-MWD275) x1, Door Station(VL-V524L) x1, Wireless monitor(VL-WD619) x 1, Power Supply Unit (VL-PS241) x1 | 
| Maximum Connectable Units | 
Door Station | 
Up to 2 (1 included with VL-SWD275) | 
| Monitor | 
Up to 3 extension monitors (not including the main monitor) | 
| Wireless Monitor | 
Up to 6 (1 included with VL-SWD275) *A total of up to 6 Wireless sub monitors and Extension monitors can be registered. | 
| Wireless Repeater | 
Up to 2 (sold separately) | 
| Connectable Devices | 
E-lock Release Support | 
Up to 2 (user supplied) | 
| PBX | 
Only Panasonic PBX | 
| Convenience | 
Picture Recording | 
Internal memory: Up to 50 visitors/sessions (up to 4 still images per visitor/session) | 
| Night Vision | 
Yes (LED lights) | 
| Touch Panel / Pan & Tilt | 
- / - | 
| Voice Changer | 
Yes (One-touch) | 
| Intercom call | 
Yes (between main monitor, wireless sub monitor and extension monitor) | 
| Monitor | 
Power source | 
Power supply unit (VL-PS241) 24 V DC, 0.6 A | 
| Power consumption | 
Standby: 2.2 W , Operating: 14.0 W Measurement conditions: Main Monitor (1 pc.) with Door Station VL-V524 (1 pc.) is connected to VL-PS241, and wireless monitor VL-WD619 (1 pc.) is linked to the main monitor. | 
| Dimensions (H x W x D) | 
Approx. 158 x 201 x 25 mm | 
| Mass (weight) | 
Main monitor: 605 g Power supply unit: 215 g (VL-PS241) | 
| Operating environment | 
Ambient temperature: Approx. 0C to +40C Relative humidity (non-condensing): up to 90 % | 
| Display size | 
7-inch wide colour / WVGA (800 x 480 pixels) (Touch sensor keys) | 
| Display language | 
English, Arabic | 
| Talking method | 
Hands-free | 
| Frequency range | 
1.88 GHz to 1.90 GHz | 
| Installation method | 
Wall mount (mounting bracket supplied) | 
| External material | 
Flame retardant ABS resin | 
| Door Station | 
Power source | 
Power supplied by the main monitor | 
| Dimensions (H x W x D) | 
Approx. 152 x 102 x 35.5 (21.5 *) mm *Excluding sections embedded into the wall. | 
| Mass (weight) | 
Approx. 225 g | 
| Operating environment | 
Ambient temperature: Approx. -15C to +55C, Relative humidity (non-condensing): up to 90 % | 
| Talking method | 
Hands-free | 
| Viewing angle | 
Horizontally: Approx. 85, Vertically: Approx. 54 | 
| Image sensor/ Camera (pixel) | 
1/3 inch CMOS sensor (Approx. 1.3 M pixels) | 
| Minimum illuminance required | 
1 lx (within approx. 50 cm from the camera lens) | 
| Lighting method | 
LED lights | 
| IP rating (INGRESS PROTECTION) | 
IP44 *Water resistance is only assured if the door station is installed correctly according to the instructions in the Installation Guide, and appropriate water protection measures are taken. | 
| Installation method | 
Surface mount (mounting base supplied), Flush mount (mount box sold separately) | 
| External material | 
Flame retardant ABS resin | 
| Wireless Monitor | 
Power source | 
Main body: Rechargeable battery AAA (R03) Ni-MH battery (1.2 V, 550 mAh)x2 | 
| Dimensions (H x W x D) | 
Approx. 173 x 52 x 30 mm (excluding protruding sections) | 
| Mass (weight) | 
Approx.160 g (including the batteries) | 
| Operating environment | 
Ambient temperature: Approx. 0Cto +40C, Relative humidity (non-condensing): up to 90 % | 
| Display size | 
2.2-inch colour / QVGA (320 x 240 pixels) | 
| Frequency range | 
1.88 GHz to 1.90 GHz | 
| RF transmission power | 
Approx. 10 mW (average power per channel) 250 mW (max.) | 
| Operating time | 
Standby use: approx. 80 hours*When used fully charged in an operating temperature of 20C. | 
| Charging time | 
Approx. 8 hours*When the operating temperature is 20C. The charging time may increase when the operating temperature is lower than this. | 
| Transmitting range | 
Approx. 100 m (line-of-sight distance between the main and wireless monitor) | 
| External material | 
ABS resin | 
| Charger | 
Power source | 
AC adaptor (5.5 V DC, 0.5 A) | 
| Power consumption | 
Standby: 0.6 W * , Charing: 1.6 W*When the sub monitor with full-charged batteries is placed on the charger. | 
| Dimensions (H x W x D) | 
Approx. 43 x 81 x 76 mm (excluding protruding sections) | 
| Mass (weight) | 
Approx. 70 g (excluding the AC adaptor) | 
| Operating environment | 
Ambient temperature: Approx. 0Cto +40C Relative humidity (non-condensing): up to 90 % | 
| External material | 
ABS resin |