I'm posting this to see if I can get some more clarification on security systems offered by X10. From what I see, there are 3 types: Protector Plus, Monitor Plus, Pro2000. The differences that I see are these:
- Protector Plus:
- Built-In Powerhorn
- No Orca Monitoring
- Remote Powerhorn/Light(s) Flash via All UnitCodes under Selected HouseCode
- Recorded Message Can Be Sent to 4 Telephone Numbers
- Monitor Plus (OLD - 8700):
- Built-In Powerhorn
- Orca Monitoring
- Remote Powerhorn/Light(s) FlashThrough Fixed Address A13
- Monitor Plus (NEW - Pro2000/8700P):
- No Built-In Powerhorn
- Orca Monitoring
[TTA Edit: Formatted for improved readability and future reference; added what I knew off-hand. Others please chime in and either OP or I can update.]