Parasitic Draw: How Many Milliamps Is Normal A parked car keeps drawing current with everything switched off, because the clock, the alarm, the keyless-entry receiver…
The 10 A Jack and the mA Jack: Which One the Reading Comes From An ammeter reading comes from whichever jack the red lead is…
How to Test Continuity with a Multimeter: Beep and OL Explained A continuity test answers one question: is there a complete path between the two…
Why a Non-Contact Voltage Tester Beeps on a Dead Wire The wire is disconnected, it is not connected to anything at either end, and the…
How to Test a Fuse and a Circuit Breaker with a Multimeter A blown fuse and a tripped breaker are the two faults an electrician…
Car Battery Voltage Chart: What Each Reading Means A lead-acid battery at rest holds about 12.6 volts when it is fully charged and about 11.9…
How to Test a Capacitor with a Multimeter: Two Failures, Two Tests A failed capacitor does not announce itself. It can go short, in which…
DT6222 Digital Multimeter: CAT III 600V for Work at the Distribution Board Where you are standing decides which meter is safe, not how much you…
VC17B+ Digital Multimeter: ±1% DC Accuracy and a Temperature Input in the Same Hand Two instruments get carried to most jobs when one would do:…
XT802 Digital Multimeter: 6000 Counts, Auto-Ranging, No Dial to Set Most compact meters make you choose the range before you can trust the reading. You…
Send us a message — our engineers reply within 24 hours.
