Keyhole Quartz Monitor Crystals

Quartz Crystal with Keyhole Electrodes


Price is for 10 (ten) crystals per package.

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These 14 mm diameter polished Quartz sensors with keyhole style electrodes are for use in custom mounting devices commonly found in R&D applications. They are designed for electrical contacts to clip or solder to each side of the crystal electrodes.


We package all keyhole type quartz crystals in a clean room compatible container which holds 10 crystals. Careful attention to the design ensures that the center of the crystal, where the actual measurement occurs (within a radius of 3 mm from the center), is not touched or contaminated by the plastic. We use pharmaceutical grade PETG plastic for the top, and hand cleaned polystyrene for the base. This difference in plastics is needed due to the buildup of static charge between two pieces of PETG. Some manufacturers use anti-static PETG, but this contains a polymer agent that will eventually leach onto the crystal surface. In other words, our packages were designed from the ground up with the same exacting standards as the crystals themselves.

Additional information

Weight 0.005 lbs
Dimensions .375 × .375 × .035 in
Package Quantity

1 piece

Harmonized Code