This Opto-Electronics Pulse Monitor PU-711 is the perfect device for anyone who wants to keep track of their heart rate during gym and training sessions. With accurate measurement provided for heart rate, this heart rate monitor is suitable for both unisex adults. Additionally, this device has an English language setting and belongs to the brand Opto-Electronics. The model number of this heart rate monitor is PU-711, and it falls under the category of sporting goods, fitness technology, and heart rate monitors.