- Conforms with ASME/B44 2009 and 2010 requirements
- Audible & visual signal when phone-line fails
- Reset allows audible signal to be silenced with standard J200 key
- Resets automatically when phone line is restored
- Up to 10 phones can be monitored when used with LMX
- Test features available
- Onboard volume control for audible signal
- Supports external 12V LED or bulb