Digital video recorders (DVRs) Comparison: Geovision, Ernitec (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Channels |
2
|
4
|
16
|
4
|
| Storage Capacity GB |
80
|
250
|
800
|
80
|
| Image per second (IPS) |
16(PAL) / 20(NTSC)
|
25 (PAL)/30 (NTSC)
|
100 fps over all cam
|
up to 25
|
| Compression Type |
Wavelet, MPEG-4
|
MPEG-4
|
JPEG
|
MJPEG
|
| Resolution |
640 x 480
|
720 x 576
|
640 x 480
|
720 x 288
|
| Signal Mode |
PAL / NTSC
|
PAL, NTSC
|
--
|
PAL
|
| Monitor Outputs |
--
|
2
|
--
|
1
|
| Alarm I/O |
--
|
4 in, 1 out
|
16 in, 2 out
|
4 in, 2 out
|
| External Storage |
--
|
USB
|
CD-RW
|
CF/SD Card
|
| Audio Recording and Properties |
--
|
4 RCA inputs; 1 RCA output
|
1 in
|
--
|
| Colour Type |
--
|
Colour
|
Colour
|
--
|
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