The Neilsen CT4121 In-line Ignition Spark Tester connects between the spark plug and HT lead to display spark quality in real time. Used to diagnose weak or missing spark without dismantling the ignition system. An essential diagnostic tool for petrol engine fault-finding. SKU: CT4121 | Brand: Neilsen
Transmission Servicing
In-line Ignition Spark Tester
£5.95 ex. VAT
Neilsen in-line ignition spark tester (CT4121). Quickly diagnoses spark strength and quality in petrol ignition systems.
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