These are SOLD!!!!!!! This is a Engine Analyzer Hawk D.C. Power it checks RPM, dwell angle for 4, 6 and 8 cylinder engines. Vintage old school analyzing tool. $35.00 Also I have a Sears engine Analyzer $35.00 Then I have a Tach, Dwell,Voltmeter $35.00 See pictures Perfect for old school mechanics. You can get all 3 for a package deal $85.00 View attachment 4199625 View attachment 4199625 View attachment 4199625 View attachment 4199626 View attachment 4199627 View attachment 4199628 View attachment 4199629 View attachment 4199630 View attachment 4199631 View attachment 4199632 These can help you with your engine repairs. Sold as is. All sales final. Cash Only!! Shipping Available on prepaid orders. Call for shipping cost. 562-690-8297 Ask for Rick Thanks for your Interest in my stuff. See other ads of mine for other car related needs..