A multimeter or a multitester - also known as a VOM (volt-ohmmilliammeter), is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter can measure voltage, current, and resistance. Analog multimeters use a microammeter with a moving pointer to display readings. - Used to test the integrity of circuits and the quality of electricity in computer components Hex Driver – Sometimes called a nut driver, is used to tighten nuts in the same way that a screwdriver tightens screws. Anti-static wrist strap – - is an antistatic device used to safely ground a person working on very sensitive electronic equipment, to prevent the buildup of static electricity on their body, which can result in electrostatic discharge (ESD). - Used to prevent ESD damage to computer equipment. Compressed Air – Used to blow away dust and debris from different computer parts without touching the components. Philips Head Screwdriver – Used to loosen or tighten cross-head screws. Flat Head Screwdriver – Used to loosen or tighten slotted screws. Needle-Nose Pliers – Used to hold small parts.