The Last unit has a damaged silence/reset button.
Minor cosmetic blemishes on the screen!
Came from aworking environment!
Philips Agilent M3 M3046A Patient Monitor
The M3046A Compact Portable Patient Monitor receives the processed data from the Measurement Server and the Measurement Server Extension, examines it for alarm conditions, and displays it. The Monitor also provides operating controls for the user, and interfaces to other devices.