Heart Rate Monitor Watch (HR102) Maximize your workout! This monitor is both lightweight and comfortable, and includes a chest strap to continuously transmit your heart rate to the accompanying wristwatch. You can view your heart rate on the LCD screen allowing you to maximize your workout and stay within your personal zone limit. SmartHeart SE102 Heart Rate Monitor An easy-to-use, compact heart rate monitor! SE102 is an entry-level heart rate watch with basic heart rate measurement and calories burned features. The included chest belt transmitter is worn comfortably against the skin. The chest belt picks up the heart signals, and sends them wirelessly to the watch.The watch unit receives and shows heart rate signal. The upper and lower heart rate zone alarm can be programmed as a visual or vibrating alert.