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Designed for 220 Vac 50/60Hz electrical environments
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Operating temp
DESIGN CODE | B
OTC 7645 Parasitic Draw Tester fordcam Designed for 220 Vac 50/60HzOTC Parasitic Draw Tester Finding electrical problems that drain the battery is getting harder all the time. But using No. 7645 with your digital amp meter takes the guess work out of a complicated job. Attach the test switch between the negative battery cable and the battery, and then road test the vehicle. Next, connect an amp meter to the switch to determine the parasitic amperage draw, and locate the excessive electrical drain on the battery.
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