Now you can use technology to monitor your heart rate easily. A new heart rate chest monitor equipped with Bluetooth 4.0 is ready to hit production, and is the first of what is likely to be a slew of similar products. This device from Dayton Industrial can be plugged in a smartphone and is ready to use within seconds. It can run for up to 1.5 years and features an ultra-slim (1.1 cm thick) plastic-encased sensor. For more information, log on to the company’s website.