G4+ knockblock From Link The G4+ KnockBlock is an essential tool for tuning and can aid in the early detection of incorrect ignition timing, lean air/fuel mixtures, and mechanical issues. It is used with earbuds, headphones, or noise-canceling ear muffs and features special filtering to allow you to listen in and detect knock early. Listen to one or two knock sensors Special filtering design improves the signal to noise ratio Can be used with ear-buds, headphones or noise-canceling ear muffs Long-life lithium rechargeable battery Rugged CNC aluminum enclosure Flying lead headphones connector Can be used with all OEM knock sensors Can be used to interface directly to a laptop for the recording of engine noise or knock sensor frequency analysis (using PCLink G4+) Please Note** headphones with their own noise filtering may be unsuitable for use with the knockblock. What’s in the Box? G4+ KnockBlock 2 sensor looms (attached) 1 headphone loom (attached) Quick Start Guide 1 USB cable mini 2 Bosch type doughnut OEM knock sensors 2 small Link Engine Management stickers Specifications: Operating Install the knock sensor/s in a suitable location on the engine (typically on a solid mounting point on the block near the cylinder head) If only using one sensor, leave the unused sensor cable disconnected Turn the volume control clockwise until it clicks. The LED indicator will turn blue when the KnockBlock is operating Turn the volume to the minimum setting (most anti-clockwise) Connect headphones to the 3.5mm audio jack Run the engine and carefully increase the volume (clockwise) until engine mechanical noise can be heard. Adjust to a comfortable listening volume Charging Turn off the KnockBlock by turning the volume control anti-clockwise until it clicks Connect the USB charging cable to the KnockBlock’s Mini USB connector. Can be charged from any standard USB charger PC, laptop, car or cell phone charger (2.1A at 5V max) The LED indicator will show red while charging. When the indicator turns off the battery is fully charged Charge the G4+ KnockBlock after use and before storage
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