Characteristic 

 • Handling 



- Diver-held mode 



Threshold 



Carried by one free swimming 

 diver (requires only one 

 hand to carry underwater, 

 but may require two hands to 

 operate) 



- Boat-towed mode* 



• Operational Water Temperature 



• Operational Turbidity 



B. Operational Suitability 



• Life (sensor system or 

 component which will likely 

 contact seafloor regularly 

 during operation shall be 

 abrasion resistant (on sand or 

 gravel) or inexpensive and 

 easy to operate) 



• Mean Cycles Between Failure 



• Reliability of Single Unit 



• Redundant Supply or Two or More 

 Units is Acceptable 



• Reliability of Two Units 



• Preventative Maintenance Times 



- Daily (excluding recharging 

 power source) 



The sensing probe can be 

 towed from an inflatable 

 boat 



28 to 85 °F 



Clear water to zero visi- 

 bility 



>7 years 



>20 

 >90% 



>99% 

 1.0 hour 



A-2 



