This unit has been restored to perfect working order. It has been cleaned and thoroughly tested as shown in the pictures. Only one key is included. Please see the pictures for the details on the cosmetic conditions. The LED and the wiring between the LED and the laser diode driver are not included by default. Power cord is not included either. This unit uses a regular computer power cord for North America.

Basic specifications,

Brand: Newport

Model: 501

Current Ranges: 50mA & 100mA

Current adjustment resolution: 10uA (or 0.01mA)

Power requirement: 115VAC, 2Amp