Compare HRDP4D500X with HRSD8C500 (2)
| Contact manufacturer | Contact manufacturer | |
| Channels |
4
|
8
|
| Monitor Outputs |
7
|
3
|
| Storage Capacity GB |
500
|
500
|
| Image per second (IPS) |
100
|
120 NTSC / 100 PAL
|
| Compression Type |
MPEG-4, JPEG
|
--
|
| Resolution |
704 x 576
|
720 x 576
|
| Signal Mode |
NTSC / PAL
|
PAL / NTSC
|
| External Storage |
2 x USB 2.0
|
CD-RW
|
| Audio Recording and Properties |
1 in (RCA G.726 Compression) / 1 out (RCA)
|
1 in RCA, 1 out RCA
|
| Colour Type |
Colour / Monochrome
|
Colour / Monochrome
|
| Alarm I/O |
--
|
8 or 16 TTL programmable as NC or NO
|
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