Wireless heart rate sensor

CMA Wireless Heart Rate sensor monitors a person’s heartbeat within a range of 0 to 250 beats per minute (BPM). It consists of a pair of wireless hand grips designed to measure heart rate by detecting the electrical signals produced by the heart.
The sensor is equipped with an OLED color display which shows sensor information and the measured values. This makes it suitable to use as a standalone measuring instrument.

This wireless heart rate sensor can be used wirelessly via Bluetooth or wired via USB with the Coach 7 or Coach 7 lite programs/apps on computers (Windows and Mac), Chromebooks, and mobile devices (Android and iOS).
When the user firmly grips the handles, the small electrical impulses that accompany each heartbeat can be detected. These signals are then processed to determine heart rate in beats per minute. This method, known as bioelectrical impedance, is non-invasive and provides real-time heart rate data without the need for adhesive electrodes or chest straps.

Technical specifications:

• Measuring range: 0 .. 250 bpm
• Resolution: 1 bpm
• Warrantee: 24 months
• OLED display: 0.96” 128 x 64px
• Operating condictions: 20 .. 60 ?, max. 85 % RH
• Maximal sampling rate: 100 Hz
• Battery life: 8h when full (rechargeable)
• Connection: Bluetooth 5, Low Energy (Mac, Android, iOS) Bluetooth 2.1, Classic (Windows) or USB-C 2.0

All specifications of the sensor are described it its Product manual.

Suggested biology & fysiology experiments:

• Compare the heart rate of different individuals
• Check the person’s heart rate before, during and after a short period of vigorous activity
• Monitor the recovery rate: that is how quickly a person’s heart rate returns to normal after exercises
• Investigate the baroreceptor reflex by observing changes in heart rate as a person transition from lying down to sitting and standing, caused by the body’s need to pump blood to different levels
• Measure a person’s heart rate before and after caffeine consumption
• Check a person’s heart rate before and after eating
• Monitor your own heart rate at different times of the day
• Observe a person’s heart rate while holding their breath