Gunson 77176 Spark Plug Tester

Designed to allow the user to test & compare spark plug performance. Can replicate engine RPM of 1000 - 5000. Hinged cover to protect user from electric shock. Power input: AC 100-230V. Output: 12V/1A DC. Supplied with AC power adaptor with UK 3 pin plug & EU mains adaptor. CE & RoHS compliant.