Part #: EPOCH-M-ECG-SEN, EPOCH-R-ECG-SEN The single-channel implantable wireless ECG transmitter amplifies and transmits high-fidelity ECG data to an EPOCH ECG System for long-term wireless ECG recording from mice or rats in their home cages. Implant contains a small amplifier, transmitter, and a battery (mouse: 2-mo. battery; rat: 6-mo. battery) encapsulated in medical-grade epoxy. Each electrode is 7-strand braided stainless steel with Teflon insulation. Each strand is 50 μm in diameter, making the bare electrode 152 μm in diameter (229 μm diameter insulated). There are two electrode leads on the ECG transmitter.