Train Smarter, Not Harder with the SIGMA R1 Duo Comfortex+ Heart Rate SensorThe SIGMA R1 Duo Comfortex+ Heart Rate Sensor is the ultimate training companion for athletes of all levels who demand accuracy and comfort. This cutting-edge sensor delivers precise heart rate data to your favorite training devices, empowering you to optimize your workouts and achieve your fitness goals. Experience unparalleled comfort with the R1 Duo´s innovative Comfortex+ textile chest strap. This ergonomically designed strap minimizes movement and irritation, even during intense activity, allowing you to focus on your performance without distractions. Seamless Connectivity for Uninterrupted Training:The R1 Duo utilizes dual transmission technology, seamlessly connecting to both ANT+ and Bluetooth Smart devices. This versatile compatibility allows you to pair the sensor with a wide range of devices, including:* Smartphones and Tablets: Track your heart rate data in real-time on popular fitness apps like Strava, TrainingPeaks, and more.* GPS Watches and Bike Computers: Enhance your training analysis with accurate heart rate data displayed directly on your device.* Gym Equipment: Connect to compatible treadmills, ellipticals, and stationary bikes for a comprehensive workout experience.Key Features:* Comfortex+ Textile Chest Strap: Provides exceptional comfort and a secure fit during any activity.* ANT+ and Bluetooth Smart Connectivity: Pairs seamlessly with a wide range of devices.* Precise EKG-Accurate Heart Rate Data: Delivers reliable data for accurate training analysis.* Water-Resistant Design (IPX5): Withstands sweat and rain, making it ideal for indoor and outdoor workouts.* Long Battery Life: Train with confidence, knowing the battery will last for up to 12 months.* Easy-to-Use: Simple one-button operation for hassle-free use.Technical Specifications:* Transmission: ANT+, Bluetooth Smart* Battery Life: Up to 12 months* Water Resistance: IPX5* Weight: 40 grams (transmitter and strap)* Strap Length: Adjustable from 66 cm to 116 cmUpgrade your training experience with the SIGMA R1 Duo Comfortex+ Heart Rate Sensor. Experience the difference accurate heart rate data and unparalleled comfort can make in achieving your fitness goals.