Here is mine, probably the most articulate, not sure what others may have typed up, but it seems to work for me when i can tell the owner is skiddish or brings up that they don't want somebody getting hurt on their property i offer this up to relieve them of any responsibility.
Permission to Metal Detect on Private Property
I, _____________________________________ agree to allow (Your Name Here), to use a metal detector to search for and recover buried coins, relics and other artifacts located on my property at ________________________________. In addition, I offer my service to you. If you or a family member have lost a valuable piece of jewelry or other significant metal object, I am happy to search and find it at no charge or cost to you. It is understood that recovery includes the digging of small holes which will be repaired as nearly as possible to original condition. This permission will remain in effect until such time that it is revoked in writing.
________________________________ (Signature) ______________ (Date)
Liability Waiver Form
In consideration of permission to use a metal detector to search for and recover artifacts on the property located at ___________________________________ and owned by ____________________________ , I, (Insert Name Here), agree to release from all liability for personal injury or property damage that I may suffer as the result of my searching said property. This release is binding and discharges said owner, his or her heirs, executors, administrators, from all actions, causes of action, claims and demands for, upon, or by reason of any damage, loss, injury which I may sustain while engaged in metal detecting on the owner’s property.
______________________________(Signature)_________________(Date)