Proximity Sensor

ETC Educational Technology Connection (HK) Ltd Verified independent store

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This block is alert. It senses how close you or objects are and can communicate that to other wireless blocks. Use it to count how many people have entered a room or set up an alar m. Each wireless block has a Bluetooth chip and rechargeable battery inside it. Simply recharge your block with a Micro USB Charging Cable. Bluetooth Dongle for laptop and charging cables not included. Show more