Akuvox - E12S-2 2-Wire Smart Doorbell with 1 Call Button - Camera, RFID, BLE, Surface Mount
- CCTV Lens Guide
- Hard Drive Size Guide
Unless selecting a vari-focal camera (with an adjustable lens) It is important to select the correct camera lens option for where the camera is to be positioned. A smaller lens will give you a wider angle but will be "zoomed out more", while a bigger lens will narrow the angle down and "zoom in more". See below to give you some idea on angles of Megapixel HD Cameras:
| Lens in mm | Approx Viewing Angle (degrees) | Ideal Distance (metres) | Typical usage/notes |
|---|---|---|---|
| 2.8 | 106 | <6 | For seeing as much of the immediate area as possible such as above a doorway/low down/garage soffits (edges can appear slightly warped/distorted) - clearly "zoomed out" |
| 3.6/4 | 83-90 | <12 | A great general purpose option giving great coverage still in the corner of a room or higher up on second floor soffits with less distortion - more of a natural "zoom" |
| 6 | 56 | 6-20 | Narrows down the angle and zooms in to look past the immediate area a little to gain more detail - down a driveway for example from higher up |
| 12 | 24 | 20+ | Zooms in significantly more to look at a gate, entrance or adjascent building |
| 16 | 19 | 24+ | As above but more so |
The amount of hard drive space you require is dictated by how many cameras, as well as their resolution, frame rate settings, and whether you have H.265 encoding enabled or not to save space (We advise turning it on to double the capacity shown below with ease).
Finally, you can often make your storage space last a lot longer by enabling motion-detected recording rather than continuous, especially if there are long periods of no activity (to perhaps double or more these figures again).
|
Resolution (Megapixels) |
Days of storage provided by 1TB per camera (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (50% motion- 15 frames per second) |
|---|---|---|---|
| 1 | 44 | 11 | 36 |
| 2 | 22 | 5 | 18 |
| 3 | 17 | 4 | 14 |
| 4 | 11 | 3 | 9 |
| 5 | 9 | 2 | 8 |
| 6 | 8 | 2 | 6 |
| 8 (4K) | 5 | 1 | 4 |
| 12 | 4 | 0.5 | 3 |
As a rule of thumb, we recommend 2 Terabytes for a 4 x 4/5MP HD camera setup, as this should give you approx 2 weeks using H.265 @ 20fps and that is on continuous, not motion-detected recording.
(You may only require the full 25 frames per second on certain cameras if things are fast-moving - ie above a till)
You can also use the Hikvision online calculator to work out what works best for you specifically: https://tools.hikvision.com/ca...
(All of our hard drives come fitted and are CCTV-specific from one of the major brands)
The E12S-2 2-Wire Smart Doorbell is a highly-compact, single call button, IP-connected Door Intercom, featuring high resolution colour camera and RFID card reader for swift, secure remote audio/video communication and door entry.
Using 2-Wire connectivity, the Akuvox E12S-2 Doorbell enables visual monitoring and one-to-one voice communication between residents & visitors and secure remote access; ideal for multi-dwelling units (MDUs), apartments, entrance gates and unmanned office receptions.
The built-in RFID reader allows for contactless, secure access using RFID cards or keyfobs.
Finished in black and brushed aluminium and supplied with surface-mounting back plate.
- Resolution: up to 1080p
- Maximum image transfer rate: 1080p - 25fps
- High intensity IR LEDs for picture lighting during dark hours with internal light sensor
- Compatible to 3rd Party Video components, e.g. NVRs
- Integrated RFID Card Reader
- Relays controlled individually by DTMF tones
- Camera permanently operational
- White balance: auto
- Auto-night mode with LED illumination
- Minimum illumination: 0.1LUX
- 1x10/100 Mbps Ethernet port
- Protocols support: IPv4, HTTP, HTTPS, FTP, SNMP, DNS, NTP, RTSP, RTP, TCP, UDP, ICMP, DHCP, ARP
- SIP v1(RFC2543), SIP v2(RFC3261)
- Audio codecs: G.722
- Video codecs: H.264, H.265
- Voice Activation Detection
- Comfort Noise Generator
- Door opener via DTMF post-dial
- 2-Wire Door Intercom
- Single Call Button (illuminated)
- Integrated RFID Card Reader
- Access Control authentication via RFID or Bluetooth BLE
- IP65 rated for indoor & outdoor applications
- Wide-angle camera: Horizontal 123º, Vertical 69º
- Two-way audio communication over IP networks with Echo Cancel feature
- Easily integrates with SIP Systems
- Finished in black plastic and brushed aluminium
- Colour Black and brushed aluminium
- Body material Plastic and aluminium
- Installation Surface mounted (back plate included)
- Camera 2M pixels, automatic lighting
- Button 1 call button (illuminated)
- Relays Out 1
- Inputs 2
- Wiegand Support Yes
- Protection Rating IP65
- Bluetooth Authentication BLE
- RFID Card Reader 13.56MHz
- Output relay 2 output relays for remote door lock control
- Dimensions 70(W) x 146(H) x 23(D) mm
- Weight (Net) 0.30kg
- Weight (Gross) 0.40kg
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Akuvox E12 Compact Door Intercom
