Bluetooth Low Energy Puck - temperature sensor - 500m range - waterproof - 15 year battery

https://www.calculus.group/shop/ble-bi-temp-puck-bluetooth-low-energy-puck-temperature-sensor-500m-range-waterproof-15-year-battery-505 https://www.calculus.group/web/image/product.template/505/image_1920?unique=ad04090

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