This electronic accessory head handle is a must-have for HVAC and refrigeration professionals. Designed by Fieldpiece, it is compatible with a variety of gauge heads and is perfect for testing purposes. The handle comes in a bright yellow color, making it easy to spot in a toolbox or storage area. The EHDL1 model is brand new and has never been used, making it a great addition to any collection of HVAC and refrigeration tools. It is versatile and can be used in a variety of applications. This electronic accessory head handle is a reliable and valuable tool for any professional in the industry.