3M Monitor Electrode Adult disposable electrodes deliver reliable ECG signal acquisition with adhesive gel foam backing for secure, comfortable placement. Featuring snap connectors and stainless steel construction, these rectangular electrodes measure 1.57″ x 1.3″ and are designed for adult patients. Latex-free and non-radiolucent, they’re ideal for continuous cardiac monitoring in clinical settings. Each case contains 50 electrodes per pack, with 20 packs included for bulk efficiency and cost-effective inventory management.