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Description
Plex Knock Monitor V3 HD *Including 2 sensors*THE ORIGINAL KNOCK MONITOR PLEX KNOCK MONITORV3 (plex pkm v3 b) INVEST IN EXCELLENCE. A revolutionary knock detection and analysis system that is more than just a toolits an investment in precision, reliability, and superior results. Built for data driven tuners who know that investing in the right tools pays dividends in performance and lasting excellence. With over 12 years of expertise behind it, the PLEX KNOCK MONITOR V3 combines cutting edge hi
THE ORIGINAL KNOCK MONITOR
PLEX KNOCK MONITOR®V3 (plex-pkm-v3-b)
INVEST IN EXCELLENCE.
“A revolutionary knock detection and analysis system that is more than just a tool—it’s an investment in precision, reliability, and superior results. Built for data-driven tuners who know that investing in the right tools pays dividends in performance and lasting excellence.”
With over 12 years of expertise behind it, the PLEX KNOCK MONITOR® V3 combines cutting-edge hi-fidelity audio filtering, superior knock event detection, and advanced PC-based cross-analysis tools. Our proprietary algorithm ensures faster, more accurate detonation analysis, empowering you to push the limits with confidence.
WHAT'S NEW? EVERYTHING.
POWERFUL PROCESSOR
A new high-speed multi-core processor handles sub-systems such as Comms, CAN bus decoding, math channels and sensor signals independently ensuring peak performance in any setup.
ADVANCED KNOCK
DETECTION SETTINGS
Level-up your detection by setting signal gain per cylinder and/or per sensor and configure signal windowing vs engine position.
DEDICATED MULTI-CORE DSP
Equipped with a new DSP core, the system delivers enhanced audio signal processing and enables advanced knock detection algorithms for greater precision.
ENHANCED PER CYLINDER DETECTION
Achieve significantly more accurate knock monitoring for each cylinder, leveraging the engine position signal input for precise analysis.
HIGH FIDELITY
AUDIO FILTERING
Steep high pass filters that isolate knock from background noise can be selected for different type of engines.
ENGINE POSITION
SIGNAL DECODING
Seamlessly integrates with existing crank and cam trigger signals to provide accurate engine speed and position inputs.
ENTIRELY CONFIGURABLE
Intuitive, yet in-depth configuration lets you customize the UI, CAN Bus, Comms, I/Os, and other functions to match your exact needs. Tailor every aspect to suit any vehicle setup for complete control and flexibility.
100Mbit ETHERNET
Enjoy ultra-fast, real-time data streaming to your PC with electrical isolation. Designed for engine dyno setups, it ensures reliable performance even when the system is located far from the PC.
INDUSTRIAL M8 CONNECTORS/
WIRING SYSTEM
Featuring a new and improved wire loom with robust industrial M8 connectors, this system enhances reliability and simplifies device setup for seamless operation.
POWERFUL PC ANALYSIS SW
Now compatible with our PDA-WIN Data Analysis & Visualization software, enabling high-level real-time or cross-analysis on your PC. Gain invaluable insights to enhance performance and fine-tune your setup.
FULLY CONFIGURABLE
RGB LED LIGHTS
Four customizable RGB LEDs provide clear visual warnings and status indicators for device health and knock alarms, ensuring you stay informed at a glance.
CAN BUS DATA LOGGING
Fully configurable datalogging with conditioned based logging. Log up to 256 data channels and 256 flag channels for post review and analysis on the PC.
INDUSTRIAL QUALITY
MEMBRANE KEYPAD
Featuring a membrane keypad with configurable functions, the new Knock Monitor delivers solid tactile feedback for a reliable user experience.
2.8” ULTRA BRIGHT IPS DISPLAY
High-brightness, high-contrast IPS screen lets one view critical real-time knock data and logged files on the spot.
BUILT TO LAST
Constructed with high-quality components, the new Knock Monitor offers frequent firmware and feature updates, backed by robust support to ensure longevity and reliability.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Better to have then not!
Excellent when you need it! Prompt claim assistance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
★★★★★ 5
Trustworthy
This protection plan is honest and true. I never purchase any electronics without it, not because I don't trust the product, but because anything can happen and ASURION has always come through when I needed them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
excellent insurance and well worth the price
the process was very easy follow the return process return via UPS store very easy to track in about 2 days you will be notified about the decision and if not repairable you will let you know the amount and it will be in your gift car almost immediately great service from starting you claim to end of process
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Prompt attention and quick refund
Awesome service. Purchased item at the end of 2023 and Asurion quickly, after return, refunded purchase price to my Amazon account. No hassle coverage. Have purchased Asurion on many purchases in the past and will in the future. Worth every penny. Saved a bunch in matters of money, quality, time and convenience.
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Reviewed in the United States on July 17, 2025
★★★★★ 1
Asurion does not honor their protection plans
Purchased a 3 year protection plan for my gaming monitor. The monitor broke after 2 years due to accidentally being dropped, which was covered under the plan. Asurion denied my claim saying they do not cover this issue. Thankfully Amazon customer service was able to help me return the monitor but this should have been handled through asurion not Amazon. If you buy a protection plan just know that asurion may not honor it if you need to use it. I have no confidence in asurion after my experience but am grateful for Amazon taking over the issue and fully resolving it for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
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