The Knock Detective is an easy-to-use audio knock detection device stuffed into a 52mm gauge. After bolting the included knock sensor(s) to your engine and connecting the Knock Detective, you can plug in headphones and listen for knock events while tuning. The device also features a bright LED display with configurable sensitivity to alert the user of engine-damaging knock events. The user can also connect the 0-5V output to an analog input on their ECU and use it to datalog the knock levels, which can really help nail down your ignition tuning.
 
Features:
- Totally redesigned Knock Detection circuitry which can distinguish knock from other engine noise
- Standard 52mm gauge with 2 knock sensor inputs.
- Custom wideband knock sensor(s) with 8' shielded cable(s)
- M8x1.25 bolt(s) with M10x1.25 instert(s)
- 6 LEDs to indicate knock signal level
- Adjustable sensitivity
- Headphone output for listening to the knock signal
- Adjustable volume
- 0-5V output for data-logging
- 3D Printed in high strength ASA
 
View User Manual
 
Listen to examples of knock here!