Which weatherproof device is used to initiate a time fuze?

The M60 igniter is a weatherproof device specifically designed for initiating time fuzes in munitions. Its construction allows it to function effectively even in adverse weather conditions, ensuring reliable ignition parameters for operations that require precision timing. The M60 igniter utilizes a pyrotechnic composition that ignites when subjected to a specific stimuli, effectively providing a dependable means to start the fuze timing mechanism.

In contrast, other devices listed do not serve the same purpose or do not have the same level of weather resistance tailored for this application. For example, while the M72 igniter may have utility in certain contexts, it is not as suited for time fuze initiation as the M60. Electric detonators, although used in various detonation scenarios, may not be weatherproof or designed specifically for time fuze applications. Additionally, a waterproof repeater functions more as a signaling device rather than an igniter for time fuzes. Therefore, the selection of the M60 igniter is aligned with operational requirements for fuze initiation under varying weather conditions.