The application of garments performing remote monitoring of physiological parameters is spread within the healthcare sphere and it might be especially useful for patients with cardiovascular system dysfunctions during rehabilitation and clinical conditions, e.g. as an auxiliary device for diagnostics. Present researches mostly concentrate on registration and analysis of cardiac parameters by electrocardiography (ECG). Another promising cardiovascular parameters registration method is photoplethysmography (PPG), which is relatively simple. The PPG absorption method is applied by developing commercial medical devices, but obviously the method of remission gives a wider range of possibilities for registration of cardiovascular parameters and is more appropriate for integrating an optical sensor into textiles. A prototype (head bandage) of a biomedical garment with an integrated wearable PPG model device has been developed and tested for remote monitoring of cardiac parameters (e.g. heart rate, R-R intervals). The major task of this paper is to evaluate usability of the PPG device for a biomedical garment, as well as to test reliability of the data registered by the developed prototype and by comparing them with cardiac parameters (heart rate and cardiac cycle length) registered by commercial medical reference devices.