Check the humidity level inside your Mono Vault without opening the lid. No need to expose your desiccant to a fresh batch of air. You desiccant lasts longer! Bulkhead style mounting. Just drill a 0.72" (23/32") hole. Seals hand tight with supplied gasket, fiber retainer, and nut. Indicates 20-30-40% humidity. Body made of Acrylonitrite-styrene (high impact plastic). Install in the center of the lid or in a recessed flat. Made in USA.
Installed FREE when purchased with a Mono Vault. Indicate your desire in the note section at checkout. All factory installations of the VaultCheck! are in the center of the lid.
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