Digital video recorders (DVRs) Comparison: Dahua Technology, TruVision (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Channels |
16
|
4 / 8 /16
|
16
|
8 ~ 16
|
| Alarm I/O |
16 in, 6 out
|
4/1
|
16 in, 4 out
|
16/4
|
| Storage Capacity GB |
12,288
|
~ 4000
|
8192
|
~ 12000
|
| Compression Type |
H.264
|
H.264
|
H.264
|
H.26
|
| Resolution |
1920 x 1080
|
1920 x 1080
|
1920 x 1080
|
1920 x 1080
|
| External Storage |
USB
|
USB
|
USB
|
USB
|
| Audio Recording and Properties |
G.711
|
4-channel, RCA, (2.0 Vp-p, 1 ohms)
|
1-ch, RCA (2.0 Vp-p, 1kohm)
|
8-channel / 16 Channel, BNC, (2.0 Vp-p, 1 ohms
|
| IP Storage rate (fps) |
30 fps
|
120
|
30
|
30
|
| Monitor Outputs |
--
|
3
|
--
|
4
|
| Signal Mode |
--
|
PAL / NTSC
|
PAL / NTSC
|
PAL / NTSC
|
| Image per second (IPS) |
--
|
--
|
30
|
30
|
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