KNOCK SENSOR
Original Bosch Knock Sensor KS4-P (1 unit).
The KS4-P sensor is designed to detect structure-borne vibrations in spark ignition engines caused by uncontrolled combustion. Engineered for durability, it performs reliably even in extreme operating conditions.
Availability: In stock
DETAILED SPEC

| Application | 3 to 25kHz |
|---|---|
| Operating temperature range | -40 to 150°C |
| Storage temperature range | -30 to 60° C |
| Max. Vibration | ≤ 800 m/s2 |
| Male thread (for cast) | M8x25 |
|---|---|
| Male thread (for Al) | M8x30 |
| Installation torque | 20±5 Nm |
| Weight w/o wire | 48 g |
| Protection | IP X9K |
| Range of frequency | 3 t0 25 kHz |
|---|---|
| Sensitivity at 5 kHz | 26 ± 8 mV/g |
| Max. sensitivity changing (life-time) | -17 % |
| Linearity between 5 to 15 kHz (from 5 kHz value) | -10 to 10 % |
| Linearity between 15 – to 20 kHz (linear increasing with freq) | 20 to 50 % |
| Main resonance frequency | 30 kHz |
| Impedance | > 1 MOhm |
| Temperature dependence of sensitivity | 0.04 mV/g°C |
| DisplaCapacity field | 1,150 ± 200 pF |
| Mating connectore 2-pole | 2-Pin RB-Kp.1 (F02U.B00.966-01) or 2-Pin Jetronic (D261.205.288-01) |
|---|---|
| Pin 1 | Sig+ |
| Pin 2 | Sig+ |
| The KS4-P can be connected to all Bosch Motorsport ECUs fea- turing knock control |
|
| The sensor must rest directly on the brass compression sleeve during operation. |
|
| To ensure low-resonance coupling of the sensor to the measure- ment location, the contact surface must be clean and properly machined to provide a secure flush mounting. |
|
| Please route the sensor wire in a way that prevents resonance vi- bration. |

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