- C536XHeart Rate Monitor Watch

The CSX C536X heart rate monitor wristwatch is an indispensable training tool. Knowing exactly how fast your heart is beating ensures that you are training at precisely the right level of intensity to maximize your training results.

£49.95 £39.95 incl. VAT


Achieve Your Goals

From baseline aerobic fitness to high end anaerobic fitness, no matter what your goal, it is best achieved by monitoring your exercising heart rate.

Track your calories and fat burnt, time within / above / below the training zone, highest / lowest and average heart rate and % of maximum heart rate.

Advanced Training Zones

The C536X automatically calculates three training zones and your maximum heart rate (MHR) based on your age:

Select the training zone at the start of your workout depending on your fitness goal.

If you need to fine-tune your training zone, you can customize the training zone and the maximum heart rate to suit your own personal fitness level.

  • Zone 1 – Wellbeing (50% – 65% MHR)
  • Zone 2 – Fitness (65% – 80% MHR)
  • Zone 3 – Competitive Sport (80% – 95% MHR)
  • Zone U – any upper and lower limit can be set manually

Keep Your Workouts in the Correct Zone

The easy to read large display continuously shows your heart rate and percentage of your max HR during exercise.

While you are training in your selected zone the C536X LED will flash green when your heart rate is in the zone.

If your heart rate rises above or falls below your training zone and you are exercising too fast or slow the C536X will warn you with an alarm beep and the LED will flash red.

Comfortable Heart Rate Transmitter Chest Strap

Fully adjustable [SIZE small to large] and elasticated to fit your body and stay secure. Unique sensor design provides a reliable connection with the training watch. Wireless 5.3KHz continuous ECG accurate heart rate transmitter compatible with most gym equipment and includes a changeable battery.

Fitness Test & Over Training Prevention

As well as training efficiently it is also very important to make sure you do not over train and cause too much stress to your body. A good guide is to check your recovery phase.

The C536X includes a fitness level test which displays your current fitness level after a 5 minute recovery phase. This is essential to track your progress and also works as a guide to make sure you are not over training. Tips to monitor and prevent over training are also included in the CSX HRM eBook.

What’s in the Box

  • C536X Heart Rate Monitor Wristwatch with 1 x Battery CR-2032
  • Heart Rate Transmitter Chest Strap with 1 x Battery CR-2032
  • Instruction Manual

Heart Rate Monitor Training

To get the most from using your heart rate monitor, Patrick Dale, renowned fitness writer, ex-marine, fitness trainer and author of three fitness books has written an eBook especially for CSX Heart Rate Monitor customers and is suitable for all fitness levels.

The eBook includes:

  • 12 x Heart Based Training Workouts
  • How to calculate your true maximum heart
  • How to use heart rate zones to achieve your fitness goals
  • How to monitor your recovery to prevent overtraining
  • Testing your fitness level

A link to download the eBook is included on the front page of the HRM instructions included inside the box.



  • Time mode
  • Heart rate mode
  • Stopwatch mode
  • Countdown mode
  • Alarm mode

Heart Rate Mode Sub Functions:

  • Time
  • Stopwatch (training timer)
  • Time within/above/below training zone
  • Memory v. Training zones
  • Fitness level
  • Calories
  • Fat

18 Months Limited Warranty

The CSX Heart Rate Monitor Watch with Chest Strap, HRM C536X includes an 18 month limited warranty from the date you purchased. We take care of any defects or malfunctions with a REPLACEMENT OR FULL REFUND FREE OF CHARGE.

Click button below to download the full warranty card details and how to get service.

Download Warranty Card

Instructions and Setup

Click on the button below to download a large print version of the CSX Heart Rate Monitor Watch with Chest Strap, HRM C536X Instructions.

Download Instruction Manual

Please also visit our CSX Heart Rate Monitor Watch with Chest Strap, HRM C536X knowledgebase of articles in the support area where we provide additional tips and troubleshooting information for the CSX Heart Rate Monitor Watch with Chest Strap, HRM C536X.

The videos below walk you through setting up and using the C536 Heart Rate Monitor:

Video 1 – How to setup the C536X Heart Rate Monitor

Video 2 – How to Connect the Chest Belt to the C536X HRM

Video 3 – The C536X Heart Rate Monitor Functions

Video 4 – Viewing the Data from a Workout – C536X HRM