Description: Cleqee P78 20:1 Signal Attenuator 10MHz Bandwidth Oscilloscope Accessories 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) Specification: Attenuation: 20:1 Bandwidth: 10MHz Input Resistance: 1.053M Item Size: 60 * 18 * 16mm / 2.36 * 0.7 * 0.6in Package Includes: 1 Piece Attenuator Note: Please note: this attenuator should not be used for any high voltage measurements other than fuel injectors and primary ignition