Heart Rate Pack with Polar Wireless

The Polar Wireless Heart Rate Pack is a complete educational and prototyping kit that lets you bring real-time biometric heart-rate data into your electronics projects in just minutes. Designed for students, hobbyists, engineers, and artists, this kit removes the complexity, calibration, and mess associated with traditional ECG sensing — no gel, no probes, no clips, no calibration. Just strap on the included chest band, power up the receiver, and your microcontroller can detect heartbeats from up to 4 feet (1.2 meters) away.

The kit includes the world-class Polar T34 Non-Coded Heart Rate Transmitter, a comfortable chest strap that uses two textile electrodes to detect electrical heart activity with ECG-level accuracy. The strap is water-resistant up to 30 meters, machine-washable, anti-bacterial, and powered by a long-life battery providing up to 2,500 hours of continuous use. The included adjustable medium elastic strap fits chest sizes from 25 to 54 inches, ensuring a snug, comfortable fit for most users. The same transmitter is also compatible with Polar WearLink+ equipped gym fitness equipment.

The companion wireless Heart Rate Receiver Module is a compact stand-alone PCB designed to interface effortlessly with any microcontroller. The module has just three connections: VCC (3.3V – 5V), GND, and a digital signal output. Each time a heartbeat is detected, the output pin pulses HIGH, allowing you to count beats per minute (BPM) in your code with just a few lines of programming. This makes the kit fully compatible with Arduino Uno, Mega, Nano, ESP32, ESP8266, Raspberry Pi, Parallax BASIC Stamp, Propeller, and any other digital microcontroller.

Whether you're building a fitness tracker, biofeedback art installation, interactive heart-rate-controlled game, smart wearable, or a research prototype, this kit provides the easiest and fastest path to integrating real biometric data into your project.

Excellent Tutorial Available: Parallax provides a detailed Heart Rate Sensing tutorial with sample code on their KickStart learning site, making this kit especially friendly for beginners.

Specifications

Polar T34 Heart Rate Transmitter (Chest Strap):

• Type: Non-Coded Wireless Heart Rate Transmitter
• Compatibility: Polar WearLink+ compatible receivers (including this kit's receiver)
• Sensing Method: Textile electrodes (no gel required)
• Accuracy: ECG-level
• Water Resistance: Up to 30 meters
• Battery Life: Up to 2,500 hours of continuous usage
• Battery: Non-user replaceable
• Strap Size: Adjustable elastic strap, 25" – 54" (medium size)
• Strap Material: Removable, machine-washable, anti-bacterial textile
• Use Case: Sports, fitness, research, biometric prototyping

Wireless Heart Rate Receiver Module:

• Function: Receives heart-rate pulses from compatible Polar transmitters
• Output Signal: Digital — pulses HIGH on each detected heartbeat
• Operating Voltage: 3.3V – 5V DC
• Pins: VCC, GND, Signal Output (3-pin interface)
• Wireless Range: Up to 4 feet (1.2 meters)
• Compatibility: Polar coded and non-coded heart-rate transmitters
• Microcontroller Compatibility: Arduino, Raspberry Pi, ESP32, ESP8266, Parallax BASIC Stamp, Propeller, and any digital MCU

Applications

• Fitness and exercise tracking devices
• DIY heart rate monitors with LCD/OLED displays
• Wearable technology and smart fitness wristbands
• Health and biofeedback art installations
• Biometric-responsive interactive games
• Research and academic biomedical projects
• Educational STEM kits for biology and electronics
• Smart home automation triggered by biometrics
• Telemedicine and remote patient monitoring prototypes
• Stress and meditation feedback systems
• Performance studies in athletics and rehabilitation
• Music and lighting that respond to heartbeat
• Interactive theater and performance art
• University engineering and IoT project