New Device Lets You Accurately Measure Performance During Resistance Workouts

kiio Sensor

Resistance training, while highly beneficial to the athlete, has always had an annoying drawback: the inability to precisely measure how much force the athlete is exerting during exercise.

But that problem has now been solved.

Introducing the kiio Sensor

The kiio Sensor is a small, self-contained unit that can be connected to a resistance cable, band, tube or anything that attaches to a carabiner. As the athlete exercises, the unit’s onboard sensors and CPU measure, store, and wirelessly communicate the performance data to a computer. This data is sent continuously, making these objective metrics available in real time for each repetition.


The kiio Sensor accurately measures force over time during any resistance exercise, with special electronics that calculate actual force, power, exercise pacing, and more. The kiio Sensor is integrated with kiio FLEX software to offer a comprehensive solution for assessing, training, monitoring, and improving the overall performance of patients and athletes. At 50 samples per second (and with over 99% accuracy), results are continuously and instantly delivered wirelessly throughout an exercise, making quantitative metrics available in real time for each and every repetition. Objective data is automatically recorded and displayed against target effort and timing, assisting with proper effort and frequency for each exercise. Audio and visual alerts indicate when limits are exceeded, helping to ensure proper performance and safety.


The kiio Sensor is approximately the size and weight of an average smartphone, and includes a rechargeable battery with more than 6 hours of life per charge. In addition to allowing real-time transmission of data to kiio FLEX software, the kiio Sensor can also store hundreds of hours of data, ready to be downloaded at a later time – essentially allowing you to collect objective performance data anywhere, anytime.


The kiio Sensor is a highly adaptable in-line device. Its patented quick interchange system allows it to interconnect with almost any equipment. A short list of some products the kiio Sensor can connect with includes:


6.1″ x 2.7″ x 1.4″

4 oz

Battery Life:
8 hrs

Charge Time:
90 min

Charging Port:

WiFi Range:
up to 300 ft

Sample Rate:
50 ms

Built-in Storage:
microSD Card

Force Range:
0-250 lbs

>99% accuracy full scale

Units of Measure:
Pounds (lbs) Kilograms (kg) Newtons (N)


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