SUNDING Bluetooth 4.0 Wireless Combo Cadence + Speed Sensor

- Bike combo sensor (included the cadence sensor and a speed sensor) attaches to the chain stay of your bike to help you track your speed and cadence accurately- Support iOS 6 system above and Android 4.3 system above with bluetooth 4.0 function models- Water resistant design, can be used in rainy day- Transmisson range: Less than 3 meters- Operating temperature: -10 to 50 Deg.C- Battery: Included 1 x 3V CR2032 battery (life: 1 hour one day can be used 2 years)- Compatibility: For iPhone 4S, iPhone 5, iPod touch 5th generation, iPad 3rd generation, iPad 4th generation, iPad mini, etc.Need to use with the phone.SUNDING cycling bluetooth 4.0 wireless combo computer speedometerAccurate DataData app can port selection wheel diameter to obtain precise speed.Perfect waterproofProduct SizeBike como sensor installation procedureUse the supplied cable ties to hold the sensor in place, do not fully tighten, attach the magnet to a spoke, do not fully tightenAdjust the magnets and the sensors, making sure tha air gap between sensor markings and magnets is less than 3mm, when setup is complete, tighten the cable ties. GeneralBrandSUNDINGQuantity1 pieceMaterialPlastic+ABSSpecificationBattery TypeCR2032 batteryBattery Number1Battery included or notYesWaterproofYesBacklightNoPacking List1 x Speedometer Cadence Sensor 1 x Bicycle Pedal Speed Sensor Magnet 4 x Fixtures TiesPackage Weight:0.053kg (0.117lb)Package Size:9cm x 7cm x 3cm (3.54in x 2.76in x 1.18in)