Detector is working condition but rechargeable batteries which are incorporated into body are not usable anymore and they need to be replaced. It use 5,2V battery pack of AIM Part Number: GS-BA-00.
Moreover I think at least some of detection cells should be replaced for fresh ones as they are common types offered also by MSA or Draeger.
Detector comes with docking station that use special holes as it can be mounted on the wall and it's made for charging but has also RS232 connector for data download.
Charger that also comes in kit is 220V and use EU connector, output 12V 250mA.
You are bidding whole kit from pics so:
-detector
-docking station
-charger with EU connector
Feel free to ask me any questions! I will ship international via tracked and registered parcel. I accept PayPal and I combine shipping!