3M 83497, Hookit Marine Fairing Board, Rigid, 4 1/2 in x 30 in, 7000045684 
Insize ISV-1H6207, RIGID BORESCOPE, 8.23″, 6928640323850
$1,794.87
Length 8.23″. View direction 70?.
Diameter .24″. Angle of view ?70?.
Focus distance .08″, depth of view .2~4″.
Dust/waterproof level: IP67. Can be used in the liquid with temperature -14?F~185?F.
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