Paradox Sp4000 Expandable to 32 Zones Alarm Panel

Common Features
Supports StayD mode
4-wire expansion bus
Expandable to 32 zones
Expandable to 16 PGMs
2 Partitions
32 User Codes
Supports PCS Series
Supports IP100 Internet Module
Supports VDMP3 Plug-in voice dialer
Supports REM3 hand-held remote keypad - require RTX3 V1.31 or higher (SP4000 - One way only)
Supports iParadox app
In-field firmware upgradeable via a 307USB 
- WinLoad for SP5500/SP6000/SP7000 
- InField Firmware Upgrade Software for SP4000/SP65
Menu-driven programming for the Installer, Master and Maintenance codes
Multiple phone numbers: 3 for monitoring station, 5 for personal dialing and 1 for pager reporting (SP65: via PCS200 only - GSM reporting)
Patented 2 opto coupler dialer circuit - the most reliable dialer in the industry - US Patents 5751803, RE39406 (N/A with the SP65)
Automatic Daylight Savings Time feature
Push button software reset (reset to default values and restart)
Direct connect at 9.6k baud 
- WinLoad for SP5500/SP6000/SP7000 
- Babyware for SP4000/SP65
256 events buffered
Fits in 20cm x 25.5cm x 7.6cm (8in x 10in x 3in) and 28cm x 28cm x 7.6cm (11in x 11in x 3in) metal boxes