In BusinessSince 1987
CA, FL, GA, ID, IA, IN, MA, MD, MI, MO, NC, ND, NE, NY, OH, TX, WI
Frequency and intensity of flash indicates whether there is an ignition system problem or fault in the fuel delivery system. Clear plastic body can withstand rough use and resists automotive chemicals. Flash can be seen in bright sunlight. Protected by mechanical strain relief.