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now we ship the Upgraded version Gemini210 product description product:Speed Sensor cadance 2 in 1 model :gemini210 size:8.85x29.8x38.3mm waterproof:ip54 sensor:Geomagnetic Sensor battery:2032 Button Battery Wireless Interface:Bluetooth / ant+ weight:9g battery lift:400 hour how to use 1.if the speed and Cadence use together,need buy two pcs 2.in speed model,use the app need set the wheelset size then can Exact display speed 3.first use the equipment,need remove the Insulating paper make sure the battery + up 4.reinstall battery can Switching Mode speed model to cadence model or cadence model to speed model
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