SpyderCHECKR targets are not designed for underwater use. However, the SpyderCUBE has been used very successfully for underwater capture. Sealing the SpyderCHECKR target in a special, diving-oriented waterproof bag may suffice for shallow diving but a very tight seal would be necessary to avoid water infiltration from higher pressure at deeper depths. The SpyderCHECKR 24 is better suited for this type of use than the 48 patch  SpyderCHECKR.

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