brand new and high quality. This item has been designed to allow fuel injector and primary ignition waveforms to be measured using Hantek oscilloscope products. Features: Can allow oscilloscope to measure fuel injector and primary ignition waveforms. Passive attenuator with 20:1 attenuation. If input a 20V signal, it can output a 1V signal. By using this item, oscilloscope can measure voltage higher than its range(*20V). Warning: Please note: this attenuator should not be used for any high voltage measurements other than fuel injectors and primary ignition. Specifications: Attenuation: 20:1 Bandwidth: 10MHz Input Resistance: 1.053M Item Size: 60 * 18 * 16mm / 2.36 * 0.7 * 0.6in Item Weight: 24g /0.85oz