micro:bit STEM Core Kit
Moisture / Touch Sensor 
The Moisture / Touch Sensor detects conductivity. Placing objects such as a finger or other items on the sensor pad will complete the circuit. When connected to a SnapCPU, the code can be used to measure the exact conductivity of an item.
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is a registered trademark of Coplin Corp Pty Ltd, Australia.
As part of continuous product development and improvement, specifications are subject to change.