The Polar OH1 Optical Heart Rate Armband Sensor in black is a versatile heart rate monitor suitable for both indoor and outdoor activities. This armband sensor uses batteries for power and has a battery life of up to 1 day. It is designed for unisex adults and provides heart rate measurements in decimal and imperial units. With features like Bluetooth connectivity and a comfortable armband, this Polar OH1 model is ideal for gym training, weight lifting, yoga, and running. The compact and lightweight design makes it easy to use for various fitness activities.
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