The Holter monitor is a recording device. The monitor is battery-powered and can be placed in a pocket or pouch. The monitor has 5 to 7 wires called leads. The leads attach to metal disks called electrodes, which are placed on your chest.


A Holter monitor is a small, wearable device that records the heart's rhythm. It's used to detect or determine the risk of irregular heartbeats (arrhythmias). A Holter monitor test may be done if a traditional electrocardiogram (ECG or EKG) doesn't provide enough details about the heart's condition.



Electrodes will be attached to your chest and abdomen. The Holter monitor will be connected to the electrodes with wires. The small monitor box may be worn over your shoulder like a shoulder bag, around your waist, or it may clip to a belt or pocket. Find out if you will have to change the batteries in the monitor.


You wear the Holter monitor for 12 to 48 hours as you go about your normal daily routine. This device has electrodes and electrical leads exactly like a regular EKG, but it has fewer leads.

ecg holter cable



when you sleep,Try to sleep on your back with the recorder positioned at your side so the electrodes don't pull off.  If the recorder light flashes, one of the electrodes or wires may be loose.  Press on each electrode to make sure it has solid contact with your skin.