Phormula KS-4 Knock Monitor | 0-5V Knock Datalogging & External Trigger
Advanced engine knock monitoring with real-time display, audible and visual alerts, 0-5V output, and ECU/dyno logging capability.
The Phormula KS-4 Knock Monitor is Phormula’s most advanced knock detection system, designed for tuners and performance drivers who need more than just a warning light. With real-time knock monitoring, configurable 0-5V analogue output, and external trigger capability, the KS-4 helps you detect knock, log it, and react fast before damage occurs.
Why tuners choose it:
- Phormula positions the KS-4 as its most advanced knock detection system.
- Includes all major KS-3 functionality plus configurable 0-5V output and remote alarm functionality.
- True 0-5V analogue data out supports datalogging with software, dynos, rolling roads, and ECUs.
- Output rates are configurable up to 100 samples per second.
- External trigger allows the KS-4 to activate an external warning light or ECU knock strategy.
- Can be used handheld or permanently mounted to the dashboard.
- Complete kit includes sensor and cables for quick installation.
Features:
- LCD display screen
- Visual and audible alerts
- Bar graph and numeric display
- Quality anodised aluminium case
- Compact design
- 0-5V data output for datalogging
- External trigger function
- Complete kit with sensor and cables
The Phormula KS-4 contains all the advanced features of the Phormula KS-3 plus:
0-5v Analogue Data Out
The KS-4 contains a true 0-5v analogue data output. Data output rates are configurable at up to a blistering 100 samples per second and fully compatible with all Data Logging Software, Engine Dyno’s, Rolling Roads and ECU’s. The 0-5v output can be integrated with an ECU to provide closed loop knock control.
External Trigger
The Phormula KS-4 external trigger function adds further flexibility by allowing you to trigger your own external warning device when knock is detected.
This may be something as simple as an LED warning light or triggering a knock strategy in your ECU.
Full product description:
When you need more than basic knock warning, the Phormula KS-4 gives you a more complete monitoring and tuning solution. It combines real-time knock detection with audible and visual alerts, then adds the advanced functionality serious tuners look for: configurable 0-5V analogue output for datalogging and an external trigger for custom warning or ECU-based strategies.
The KS-4 can trigger your own external warning device when knock is detected, whether that is a simple LED warning light or an ECU knock strategy.
Phormula also makes the KS-4 practical in real-world use. It can be used as a handheld unit or permanently mounted to the dashboard, and it is configurable for knock frequencies between 6 and 9 kHz. The included Bosch wideband knock sensor, shielded signal cable, mounting kit, and wiring loom make installation straightforward for shops and experienced enthusiasts alike.
What’s included:
- Phormula KS-4 Knock Monitor unit
- Bosch wideband knock sensor
- 3 metre sensor cable
- Sensor plug
- Shielded signal cable
- Mounting kit
- Wiring loom / power connection hardware
Best for:
- Professional tuners who need knock data they can log and analyze
- Dyno and rolling road tuning environments
- ECU-based builds that can use 0-5V analogue input for knock strategies
- Drivers and workshops that want visual, audible, and external knock warning options