APC AP9319 Environmental Monitoring Unit with Rack Mount UNTESTED MISSING AC

APC AP9319 Environmental Monitoring Unit w/ Sensor AC Adapter Rack Ears Included

APC AP9319 Environmental Monitoring Unit with Rack Mount

Geist RSE‑B Environmental Monitor w/ Ethernet Remote Sensor Ports SNMP

APC AP9319 ENVIRONMENTAL MONITORING UNIT Rack Mount

APC AP9319 Environmental Monitoring Unit w/ Rack Mounting Ears used