Part number MSI001. Also known as the old style Lead Plates, these reusable/disposable electrodes mate with your ECGenie to enable you to non-invasively record the ECG in your awake mice. Each lead plate can be re-used ~5 times, depending on animal behavior and your protocol. Shelf life ~18 months. Each box contains 24 lead plates. This is the legacy design but is still compatible with newer ECGenies. For orders over 10 boxes, please contact