Rainin EDP single channel Pipet lite electronic volume pipette 250 ul parts

used Rainin Electronic digital Pipet variable volume single channel with tip ejector. models EDP. 5- 250 ul. The charger/power adapter/battery does not included. The unit powers up if connected with power adapter. but the pipet does not pick up any volume- need the seal replacement- will sell as-is- for parts or repair- no return. no refund. Lot gar1stshgreybx