Description
Product Overview
The Goupchn 20 1 passive attenuator is engineered to deliver precise signal reduction while maintaining waveform fidelity, allowing oscilloscopes to safely capture high‑voltage automotive signals. Constructed from a robust metal housing, the unit offers a compact footprint of 2.52 x 2.09 x 0.51 inches and weighs only 0.04 ounces, making it easy to transport and store.
With a 20:1 attenuation ratio, the device effectively lowers voltages up to 300 V into the typical ±20 V input range of most oscilloscopes. This capability enables technicians to observe injector pulse widths, primary ignition spikes, and other critical engine diagnostics without risking equipment overload.
The attenuator features a low‑capacitance design that minimizes signal distortion, ensuring accurate timing and amplitude representation. Its connectors are gold‑plated for reliable contact and corrosion resistance, supporting long‑term field use in harsh automotive environments.</n
Compliance with industry standards is reflected in its CE marking and rigorous testing for input overload protection. The product has earned a high customer rating of 4.8 stars from eight verified reviews, underscoring its reliability and performance.
Designed for universal compatibility, the attenuator works with a wide range of oscilloscope models, including popular brands from Tektronix, Keysight, and Rigol. The simple plug‑and‑play interface requires no additional configuration, allowing users to focus on data acquisition rather than setup.
Package dimensions and weight make the attenuator an ideal addition to any diagnostic toolkit, and the included documentation provides clear guidance on safe usage, calibration tips, and troubleshooting procedures.
Usage
Automotive service centers benefit from the attenuator when diagnosing fuel injection timing, where high‑voltage pulses must be captured accurately to assess injector health. By reducing the voltage to a manageable level, the oscilloscope can display detailed waveforms without clipping.
Performance tuners and race teams use the device to monitor ignition coil output during high‑rpm operation, gaining insight into spark quality and timing consistency. The enhanced input protection safeguards expensive measurement equipment during aggressive testing.
Educational institutions teaching automotive electronics incorporate the attenuator into laboratory exercises, allowing students to safely explore high‑voltage phenomena while reinforcing best practices for equipment protection.
Field technicians performing on‑vehicle diagnostics appreciate the lightweight design, which can be carried alongside other handheld tools without adding significant bulk. The rugged enclosure resists drops and exposure to oil, coolant, and other automotive fluids.
In addition to automotive applications, the attenuator is suitable for general electronics troubleshooting where voltage levels exceed standard oscilloscope limits, such as power supply validation and motor control analysis.
When used with a differential probe, the attenuator further expands measurement flexibility, enabling accurate capture of floating signals in complex engine harnesses.
Why Choose Us
Goupchn commits to delivering high‑quality testing accessories that combine durability with precision. Each attenuator undergoes a multi‑stage quality control process, including electrical performance verification and mechanical stress testing, to ensure consistent operation across the full voltage range.
Our customer support team provides responsive assistance, offering technical guidance, warranty service, and replacement parts when needed. Users can rely on prompt answers to any installation or performance questions.
The design emphasizes ease of use: no calibration is required, and the universal connector fits standard oscilloscope BNC inputs, reducing setup time and potential for user error.
Materials are selected for thermal stability, ensuring the attenuator maintains its attenuation ratio even under prolonged exposure to elevated temperatures common in engine bays.
We offer a 12‑month limited warranty that covers manufacturing defects, reflecting confidence in the product’s longevity and reliability.
Continuous feedback from professional diagnosticians informs iterative improvements, so each production batch benefits from real‑world insights and refinements.
Key Features
- 20:1 attenuation safely reduces up to 300 V for standard oscilloscope inputs
- Compact metal housing resists drops and exposure to automotive fluids
- Gold‑plated BNC connectors ensure reliable, low‑noise signal transmission
- Low‑capacitance design preserves waveform accuracy for precise diagnostics
- Dedicated customer support and 12‑month warranty for peace of mind
FAQ
Can this attenuator be used with high‑voltage ignition coils?
Yes, the attenuator is rated for a maximum input of 300 V, making it suitable for measuring primary ignition coil spikes while protecting the oscilloscope from overload.
Is any calibration required after installation?
No additional calibration is needed. The device provides a fixed 20:1 attenuation ratio that is stable across the specified voltage range.
What oscilloscope models are compatible?
The attenuator works with any oscilloscope that accepts a standard BNC input, including models from Tektronix, Keysight, Rigol, and many others.
How does the attenuator protect the oscilloscope?
By reducing high voltage signals to within the oscilloscope’s input limits, the attenuator prevents input over‑voltage damage and extends the lifespan of the measurement equipment.
What is the warranty period?
Goupchn provides a 12‑month limited warranty covering manufacturing defects, with full technical support throughout the period.
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