Easy to operate:Connect the counter The digital display is displayed directly with a zeroing device. After returning, you can count from . Practical counter tools are easy to operate and count accurately.The output signal, amplitude, and frequency can be displayed simultaneously Applicable to: counter for accumulating the number of times the instrument or machine reciprocates, Used for cumulative records of the number of sports equipment or machinery.JDS6600 series function generator can generate multiple waveforms such as sine, square, and arbitrary STURDY AND DURABLE:Signal Generator is 100% brand new and high quality. Easy to operate, and count accurately, is practical counter tool,The series signal generator has excellent amplitude and frequency characteristics, the appearance of this instrument is exquisite and beautiful. RETURN TO DEVICE:The resettable mechanical counter has digital display directly, with a rotating return to device.Can count with the axle to move arms by connecting to a machine pulling count, can turn back to with the knob.This instrument is widely used in factories schools research institutes and laboratories Package Includes:1 x JDS6600Dual-channel Signal Generator 1 x Power Adapter 1 x USB Cable 2 x Signal Connecting