<https://selcousa.com/product/m3000/#webpage>
<http://schema.org/description>
"SELCO USA M3000 Analog Alarm Monitor, 24VDC, 24 Channel, 48 Alarm Points, RS485-Modbus, Easy to Legend, built-in Siren Output, M300.0010"
<https://selcousa.com/product/m3000/>