The iGPSPORT HR40 is a chest strap heart rate monitor designed for athletes and fitness enthusiasts seeking accurate, real-time heart rate tracking. It's compatible with a wide range of devices and fitness apps, making it a versatile choice for various training environments. Key Features: Sensor Type: Electrocardiogram (ECG) for high-precision heart rate monitoring. Connectivity: Supports both ANT+ and Bluetooth 4.0, ensuring compatibility with GPS bike computers, smartphones, and sports watches. Heart Rate Range: 40–240 BPM. Battery: Powered by a CR2032 coin cell battery, offering approximately 1200 hours of usage. Water Resistance: Rated IPX7, suitable for use in wet conditions. Weight: 47g. Strap Length: Adjustable between 65–95 cm, accommodating chest sizes up to 120 cm. Operating Temperature: Functional in temperatures ranging from -10°C to 50°C. The HR40 is compatible with several popular fitness applications Zwift Wahoo Fitness Bkool Endomondo Polar Beat ALA COACH