This high-quality propane rod is a must-have for any medical sensor or ultrasound probe. Its durable construction ensures reliable performance and accuracy in measuring electrical activity. With a diameter of 30mm, it is compatible with a wide range of medical equipment. Whether you are a healthcare professional or a laboratory technician, this propane rod is an essential tool for your practice. It is easy to use and provides precise measurements every time. So why wait? Order now and experience the benefits of this top-of-the-line electrical rod.