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We are UK based, if you prefer to
phone on 020 7258 1831.
Monday to Saturday, 9.30AM until 5.30PM
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Digital Video Recorders


773 4ch Digital Video Recorder

Click for Big Picture
Linear Zoom (2x~4x)
Multiplexer & Quad recording mode switching
Full size 30 image/sec or Quad size 120 image/sec record
Support 1 removable HDD(over 250GB) & Hot swap function
4 audio inputs / 2 audio outputs
Motion detection triggered record function
Wavelet compression format
4 CH DVR replaces Time-Lapse VCR + Multiplexer / Quad
On Screen Display and remote control via video server & PC
Picture-in-picture (PIP) & POP in live
Alarm input & output function
Video Loss Detection on each channel can record up to 256 events
Quick multiple search by date/time, alarm, full, motion list
Security password protection
RS-232, RS-485 communication protocol

773 4CH DVR
Video format
Hard disk storage
120GB HD
Record mode
Manual / Alarm / Timer / Motion
Camera Input Signal
Composite video signal 1 Vp-p 75Ω BNC, 4 channels
Main Monitor Output
Composite video signal 1 Vp-p 75Ω BNC
Call Monitor Output
Composite video signal 1 Vp-p 75Ω BNC
Audio input
4 audio inputs, (RCA)
Audio output
2 audio outputs, (RCA)
Motion Detect Area
16 * 12 targets per camera
Motion Detect Sensitivity
99 Levels
Video Loss Detection
Refresh Rate
Up to 200 field images/sec. for PAL
Recording Rate
Up to 25 images/sec. for PAL
Dwell Time
Programmable  (1~10 Sec)
Picture in Picture
Yes (Movable)
Key Lock
Picture Zoom
2*2~4*4  (Movable)
Camera Title
8 letters
Video Adjustable
Hue/ Color/ Contrast/ Brightness Adjustable
Alarm Input
TTL input, Hi (5V), Low (GND)
Alarm Output
Remote Control
RS-232 or RS-485
Time Display Format
Power Source
AC90-220V, 47Hz~63Hz
Operation Temperature
10 ~ 40°C
RS-232C / RS-485 (bps)
Dimension (mm)
343(W) x 223(H) x 59(D)
Net Weight
2.05 kgs

"773" 4CH. Digital Video Recorder
with 1 x 1
60GB Hard Drive £299.95


with 1 x 250GB Hard Drive £350.00

With Remote View via Network/Internet
"773W" 4CH. Digital Video Recorder
with 1 x 250GB Hard Drive £425.00


Price Excludes Carriage and UK VAT
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Henrys Electronics Ltd
Need Any Help? Call: 020 7258 1831

404 Edgware Road, Paddington, London, W2 1ED, UK,
VAT Number : GB 241 7629 61
Tel:+44 (0)20 7258 1831, Fax:+44 (0)20 7724 0322, email:


All prices exclude 17.50% VAT, and Carriage Charges. For UK and Europe Please Add 17.50% VAT To All Prices, E & O.E. Last Up dated and Validated April 2005. All comments or enquires to: layout and design Duncan Evans, Copyright ©1997-2005 Henrys Electronics Ltd.