Magene H303 Heart Rate Sensor Bluetooth ANT Upgrade H64 HR Monitor With Chest Strap Dual Mode Computer Bike Sports Band Belt New Magene H303 Heart Rate Monitor Mover Sensor ANT Bluetooth dual-mode With Chest Strap Outdoor Sports   Description: H303 dual-protocol heart rate belt sensor uses advanced ECG processing circuit to directly extract heart rate data from ECG waveforms, and is optimized with the third-generation self-developed algorithm to eliminate noise interference caused by exercise and sweating, and heart rate data is accurate and stable. Accurate heart rate Comfortable and convenient to wear Switch-free design Sensor weight 16g Battery life 1000h Sensor thickness 11.5mm Waterproof and dustproof IP67 Specifications: ANT &Bluetooth dual protocol support: ANT device and sports APP can record data at the same time, and the transmission is stable Fast wake-up, wear and use: the red indicator light flashes, indicating that the sensor has been awakened and started to work Long battery life: continuous use, up to 1000 hours, 1 hour per day, sustainable use for 2.5 years IP67 dustproof and waterproof: meet daily waterproof needs Lightweight, not cumbersome, and comfortable: chest strap -30±1g, host -16g Package Included: 1*Heart rate monitor 1*chest strap 1*Instruction