The MTI Messenger monitors up to six channels for an
out of tolerance condition, that takes a sampling every
second. These channels are typically used to measure
temperature, or configured as dry contact relay inputs.
When a fail condition is encountered, the device waits
a specified time and then proceeds to dial a designated
number. Once connected to the receiving computer
system, a packet of information is uploaded and presented
using the logging software. Provisions are also
made for a pager.
Features of this device include the ability to dial a second
number, set two levels of failure, dial at specified times,
automatic check-in to ensure unit is still functional, and
outdoor reset. A pager or a second computer may also be
used as a backup/retry system using a second phone
number. A set of relay contacts is also available and may
be opened or closed during an alarm condition.