Heart rate monitoring unit

A heart rate monitoring unit comprising,

• a. a heart rate monitor, the heart rate monitor including
• i. a base, wherein the base has a length defining a longitudinal axis, and is conformable to a user's chest,
• ii. an electronics unit, wherein the electronics unit is supported by the base,
• iii. first and second electrodes, wherein the first and second electrodes are supported by the base, the electronics unit is disposed between the first and second electrodes along the longitudinal axis, and the first and second electrodes are in electrical communication with the electronics unit, and
• iv. wherein base includes a first bridging portion defined between the electronics unit and the first electrode and a second bridging portion defined between the electronics unit and the second electrode, the first and second bridging portions have first and second openings defined therein, respectively, and the first and second openings each have a notch defined therein, and
• b. a belt having first and second opposite ends, wherein the first end includes a first belt connector and the second end includes a second belt connector,
• i. wherein the first and second belt connectors each include a cylindrical portion having a flange extending therefrom, and
• ii. wherein the cylindrical portion of the first belt connector is received by the first opening notch and the cylindrical portion of the second belt connector is received by the second opening notch.