OTC 3631 Heavy-Duty Logic Probe Tester<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Multi-functional design allows testing range of 3-26 volts</li><li>Bright red and green LEDs interpret voltage signals such as ground power and frequency</li><li>Tests fuel injectors solenoids presence of serial data and Tach reference signals</li><li>Output tests on MAF cam crank hall effect VRS sensors and more</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51CKGHMQDZL.jpg" noproxy>