... , 2m, 2.5m for water leak detection customize easy to use Listening stick Used for water leak detectionSpecifications 1m, 1.5m, ... inserted into, you need to break the ground with a shovel, take it out and then put the ... stick into the hole. This method costs a lot of time and efforts and is not safe ... leakages. The shape of the drill probe is like a piston. Point the shark end to the ground when ...