OCS sensor


Designed to carry out the cylinders’ efficiency test in case the engine does not have an authorized crankshaft position sensor or its access is very difficult.



ROTKEE (Ukraine)

Output cable connector


Output Signal Type


Supply voltage (recommended)

8 to 20 V (12 V)

Consumption current

30 mA maximum

Recommended Sampling Rate

50 kHz minimum

Operating temperature range

-20 to 80°С

Signal Cable Length


Housing Material



anodic blackening


250 g

Electrical protection:

- from the polarity reversal;

- from the ground fault of the sensor signal output;

- from supplying voltage to the sensor’s signal output;

- the sensor case is not connected to the negative wire, so if the sensor is connected to the car body and the negative power wire is accidentally connected to the battery’s positive terminal, there will be no short circuit.

Sensor Design

The sensor case is made of aluminium alloy, which highly protects it from possible mechanical damage and external electromagnetic noise. The case coating is anodic blackening.

The soft microphone cable with a dense shielding braid is used as a signal cable. BNC is used as a sensor-oscilloscope connector. The power cable is insulated in soft silicone. Clips are used for connecting to the automotive battery.

While developing the sensor, high emphasis was placed on cable joints as this junction is damage-prone. Each of these joints includes a circuit board, which supports the loads as well as fixes the cable. Such solid joints prevent cable breakdown and increase its durability.