Bicycle Computers CYCPLUS S1 Wireless BT ANT+ Bike Bicycle Speed Sensor Boost your riding performance with the Speed Sensor, the smallest speed sensor available. Features: BT 4.0 & ANT+ TECHNOLOGY: You can see your exercise data by connecting this sensor with any devices which support BT4.0 or ANT+. ULTRA SMALL DESIGN: 38 * 28 * 15mm / 1.5 * 1.1 * 0.6in and weighs only 8g / 0.3oz, you won’t feel any burden when cycling. AUTO START AND STOP: After connection with device, data such as gradient, speed, distance and duration will be shown on the device. It will power down to sleep mode when not in motion, and has a maximum standby time of 300 days. EASY INSTALLATION: Easily attach to your bike with included cable ties and adhesive tape, no magnet or alignment needed. COMPATIBLE APPS & Devices: App: WAHOO/STRAVA; Watch: for SPOVAN / for GARMIN / for CATEYE; Stopwatch: for GARMIN / for TOMTOM / for BRYTON; Bike Trainer: for ZWIFT / for TACX / for BKOOL. Specification: Brand: CYCPLUS Material: ABS Color: Black Battery: 1 * 3V CR2032 (included) IP Rating: IPX7 Standby Time: 450 days Continuous Working Time: 300 hours Measuring Range: 0-70km/h Size: 38 * 28 * 15mm / 1.5 * 1.1 * 0.6in Net Weight: 8g / 0.3oz Package List: 1 * Cadence Sensor with Battery 3 * Cable Tie 3 * Adhesive Tape 1 * Spare Battery