Fisher Pulse 8 



POOR. The handle design and weight distribution is poor due to inadequate balancing 

 (the front end is heavy) and lack of a forearm rest. As a result, short duration, limited handling 

 of this unit is likely to fatigue the arm. The mechanism for adjusting the wand length is also 

 rated as poor. Adjusting the wand length is done by unscrewing threaded pieces of PVC pipe 

 and removing or adding sections. The extra sections would have to be taken with the diver for 

 adjustment to be made underwater. 



Forster Ferex 



NOT APPLICABLE. This system was not designed as a diver tool. 



RUGGEDNESS 



Garrett XL500 



FAIR. The ruggedness of this unit is rated as only fair. Although the electronic housing 

 appears very rugged, the arm rest and sensing coil attachments appear weak and prone to 

 damage. All plastic portions of the wand should be replaced with aluminum tubing. 



White's PI-1000 



FAIR. The wand and the attachment points for the handle, arm rest, and coil appear to 

 be fairly rugged. However, the overall rating is only fair because the electronics housing appears 

 prone to damage. The housing is a thin-walled plastic enclosure that is positioned on the top of 

 the wand grip. In this position, the housing extends outside the body of the unit and is 

 susceptible to impact or snagging. 



Fisher Pulse 8 



POOR. This unit is poorly constructed. The wand, fabricated from PVC pipe, is weak 

 and inadequately designed for supporting the components of the system. The attachment points 

 for the coil, handle, and electronics housing are welded PVC and also appear fragile. The 

 electronics housing appears to be the only ruggedly constructed component of this system. 



Forster Ferex 



GOOD. The components of this system appear very rugged and well constructed. 

 However, only the probe is submersible. The electronics housing and power supply would 

 require redesign to make these components waterproof. 



B-3 



