Holter Trismed Cardicode 300H with the ability to record 12 and 3 channels for research and analysis of ECG data within 72 hours. The device weighing 80 grams can be easily used by both adults and children. The built-in accelerometer will provide additional information about the patient's movements during the monitored time. Information is recorded on the SD memory card. Power is supplied from built-in batteries or AA batteries.