It all depends on the size and material of the object, but some examples are:
- Magnetic Locators:
- Survey marker up to 9 feet
- 1-1/4″ PK nail up to 12 inches
- 4″ Cast-Iron pipe up to 10 feet
- Well casting up to 18 feet
- Manhole cover up to 10 feet
- Pipe & Cable Locators:
- Buried utilities up to 20 feet maximum