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Thermometer/Hygrometer holder for canning jar (incl. hygrometer, Ø 7 cm lid inside)
This perfectly fitting PETG holder transforms your mason jar into a practical mini climate meter. The holder is simply clamped to the inside of the lid (7 cm inner diameter) and holds your hygrometer securely and vibration-free in position.
Holder Details:
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Suitable for mason jar lids with 7 cm inner diameter
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Printed from robust PETG for long durability
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No gluing or screwing necessary
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The battery can be changed in the lid, no removal necessary.
Included Hygrometer – Specifications:
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Size: 45 mm x 15 mm
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