SKC AirChek XR5000 personal air sampling pump as shown. Unit was tested using an external bench power supply connected to the battery terminals.

The pump powers on, display is functional, and the unit runs when activated (holding both arrow buttons). Motor operation was observed and the pump runs as expected during testing.

The display shows a HOLD indicator and the battery icon reads full at operating voltage. Settings could not be adjusted during testing; arrow buttons did not change values. Unit may be in a locked or programmed mode. No further attempts were made to change configuration.

No battery pack, charger, tubing, or accessories are included. Unit shows typical cosmetic wear from prior use including scuffs and scratches.

Sold as-is with the above testing only. No guarantees on calibration or full functionality.