Features: Achieve precise signal attenuation with Upgraded Version of P78 Oscilloscope Crafted from highly quality PVC material,perfect for electronics enthusiasts for accurate measurements This item to allow injectors and primary ignitions waveforms use oscilloscope product. P78 attenuator is a passive 20: 1 attenuator.Because signal is attenuated, it can make oscilloscope measurement exceed its output about 20V. Enhances input overloads protections. Never use it for secondary ignitions tests. Warning: Please note: this attenuator should not be used for measurements other than primary ignitions. Specifications: Model:P78 Attenuation: 20:1 Bandwidth: 10MHz Input capacitance:10MHz Bandwidth Item Size: about 39x16x10mm/1.53x0.63x0.39in Package Includes: 1PCS P78 Attenuator note: Due to light and screen difference, the item color may be slightly different from the pictures. Please allow 0.5-2cm differences- due to manual measurement.