The P5-V series from Otto offers all the functionality of the P5 Alternate action switches but with the added advantage of a stainless steel, vandal resistant case and button. They offer a very simply action of push to turn on, push to turn off. The button returns to the original position after each actuation and gives a positive tactile feedback so you know the switch has been actuated.

The switches are tough and rugged and suitable for harsh environments. They are sealed to IP68S and IP69K. The terminals have been epoxy sealed to give protection against flux during wiring and offers behind panel protection from dust and moisture.
Vandal resistant (stainless steel) case & button
Button sealed with patented "rolling sleeve" design
Contact area sealed at case & terminals
Watertight to IP68S and IP69K
Less than 25mΩ contact resistance
Handles low level up to 10 amps
1 million mechanical cycle life