Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Multimeter






A regular multimeter measuring Voltage, Current and Resistance is a useful tool for work on the car electrical system. The range of variations can be great between different multimeters. Certain multimeters can measure pulses, frequencies and test diodes.

Technical data
Measuring in Volts 0 - 1000 V
Measuring in Amperes. 0 - 10 A
With current tongs 0 - 1000 A (DC)
Resistance measurement 0 - Infinity Ohms
Engine speed Yes

The following equipment is compatible:
- Fluke 88