This Conn ST-11 Strobotuner is a reliable and durable vintage tuner, well-regarded for its precision. This unit, showing some wear from years of use on our repair bench, has consistently delivered accurate tuning for thousands of guitars. Despite its age, it remains solid and functional, although it comes without a power supply. We upgraded our repair bench to newer tuners ages ago now, and held onto this unit as a backup, losing the power cable in the process. Weighing 8.4 lbs, it is a robust piece of equipment suitable for professional use.