With Grimsholm Green signal cable finder MS6818 you can both find and troubleshoot signal cable for robotic lawnmowers (even if the cable is deeply buried) very easily.
The equipment has been preconfigured to have the settings that are optimal for troubleshooting specific robot installations, but can also be used for a number of other purposes such as identifying pipes and electrical wiring in walls, troubleshooting electric underfloor heating, checking voltage in wall sockets, etc.
Swedish user manual and troubleshooting guide for robotic lawnmowers included with wiring, crocodile clips, test probes, skewers, bag and batteries.