Adjusting the electrode strap length and tightness

Adjusting the electrode strap length and tightness

What is the proper length of the belt for me?

Measure you chest size below the pecs/breasts. Adjust the Beat2Phone ECG strap to be significantly shorter than you chest size for tight fit to achieve good electrode skin contact.
For example:
80cm chest 65-68 cm strap
100cm chest 72-77cm strap
130cm chest 84-93 cm strap