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The 3477 Alkaline Base is replacement part for our retired 21X dataloggers. It can also be used to convert a 21XL (sealed rechargeable battery base) to a 21X (alkaline battery base).
Read MoreThe 3477 Alkaline Base is replacement part for our retired 21X dataloggers. It can also be used to convert a 21XL (sealed rechargeable battery base) to a 21X (alkaline battery base).
The 3477 includes an anodized base, on/off switch, battery clips, and eight D-cell alkaline batteries.
The 3477 was formerly ordered as the ALK21X.
The 3477 is for the 21X or 21XL Microloggers.
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