This MAC TOOLS AC9800 electronic charging scale is a must-have for any HVAC and refrigeration professional. With a digital display and the ability to measure in LB, OZ, and KG, this charging scale is perfect for any refrigerant. The included controller and few accessories make this charging scale even more versatile for any job. Whether you're a seasoned professional or just starting out, this MAC TOOLS charging scale is sure to make your job easier. Its accurate readings and easy-to-use design make it a valuable addition to any technician's toolkit.